There are, however, times when a unique size is needed to accommodate a project. All true duct tape has a rubber-based adhesive, but each tape has its own adhesive recipe. Other handling characteristics play a role in performance. This means that when the cloth grid is added, it melts directly into the plastic, forming a single, fully bonded piece. During that time, the piece of 357 that was holding the block of wood began to shift and slide downward. After many conversations with four prominent duct tape manufacturers (and confirmed through our testing), we’re convinced a process called coextrusion is the best way to assemble these three ingredients. Scotch’s 9-mil All-Weather is the other laminated tape that we looked at. Our range of protection tape and duct tapes such as temporary downpipe, stucco tape, and brick tape. A high strength, 100% fibreglass close weave (9 x9 per sq inch) mesh scrim tape that will not bliser or bubble. The 17-mil T-Rex Tape, made by Shurtape (the parent company of Duck), is positioned as a direct competitor to Gorilla, even down to the terrifying animal mascot. To evaluate the effects of long-term weather exposure, we left four sample boards—with a total of 40 tape samples—out in a south-facing New England field for seven months, encompassing high summer and brutally cold winter. Paper joint tape is exactly as the name says: long strips of paper, usually in rolls of 75 feet or more. They managed to get the fender back on—with duct tape—a fix good enough for four hours of joyriding on the moon. The cloth grid is held to the poly either by a separate laminating adhesive or the “squish-through” method, where the rubber-based adhesive holds everything together. There’s no question that Gorilla Tape had the strongest adhesive layered on top of the strongest mesh. Before getting into these specifics, it helps to know a bit about the three ingredients that make up a piece of duct tape: a polyethylene sheet backing, a cloth grid, and a rubber-based adhesive. It’s not the best choice for smaller around-the-house tasks, but it can really take a beating when put up against months of rain, snow, and sunshine. Then the block of wood disengaged from the tape and fell. In both of the adhesion tests, the tape broke before pulling away from the material. Prior to this, duct tape played a life-saving role on the Apollo 13 mission, when the three astronauts stuck in the capsule managed to cobble together a repair to their CO2 filters with the help of duct tape. This is a small price to pay for a tape that’s as strong and versatile as it is. While duct tape is often used for small fixes at home, it rises to higher occasions as well: Every NASA space mission leaves earth with a good supply of duct tape, and on at least two occasions, it became a crucial part of a mission’s success.1. None of the other tapes moved at all; only the 357’s gooey adhesive was affected by the heat. Of the 10 tapes, the only two still holding the poly squares to the sheet of OSB plywood were the Sticky Ass and T-Rex. Without the fender, the abrasive moondust could cover the equipment and the astronauts—and then potentially overheat in the fierce lunar sun, cooking the astronauts in their suits. The final two sample boards are just strips of duct tape adhered directly to plywood and to a sheet of poly. During testing, we found that this negative outweighed the added strength of the really thick tapes, like the 17-mil Gorilla. In every case, the adhesion level surpasses that of the material strength and the tape broke before peeling away. An example from early 2020 shows the typical kind of performance we’ve seen: After a month securing some loose Christmas lights wires to an old galvanized gutter in Los Angeles—enduring rainstorms, harsh sunshine, and high winds in the meantime—several scraps of Duck tape, torn into stingily small postage stamp sized squares, all held their positions tenaciously, requiring a forceful tug to dislodge in mid-January. All-weather, UL 181B-FX Listed film tape designed … It has a quality high tack adhesive and an open mesh that will not blister or bubble, creating perfect joints every time. Our Eusoscrim tapes come in two sizes, 48mmx90mm and 100mmx90mm. Photo: Doug Mahoney, A few of the sample boards that have been cooking in the sun at the six week mark. Fax: 01242 224794 Made of tear-resistant foil-scrim-kraft (FSK) laminate with high-tack synthetic rubber adhesive, this durable tape bonds to surfaces for an immediate seal. Polyken explained to use that the very stiff adhesive performs well in extreme temperatures and excels on flat surfaces. Fiberglass scrim is available in tape and cloth options. The rubber adhesive is then applied to one side, creating what we know as duct tape. This kind of stretching is nearly impossible to do with a thick 17-mil tape. It’s harder to see on high-end tapes because as the tape quality increases, the grid gets smaller and dimples become difficult for the eye to pick up. It is also too stiff to wrap tight around a corner. Foil-faced tape, like this Nashua product you’ll often see HVAC installers carrying, is better for these situations. This heavy duty double-sided tape won’t budge! These wrinkles create pockets where wind or rain can penetrate into the tape—we hit one of the sample boards with a hose at medium pressure and the Scotch came right off, while all of the other tapes remained on the board. After two weeks, when we removed the tape samples from a plywood board, the Scotch was coming apart, with a significant amount of the mesh separating from the poly backing and adhesive. With a co-extruded tape, the scrim is really an internal component of the poly, so this kind of separation doesn’t occur. The beefier they are, the less flexibility and conformity they have. The Kai 5210 8-Inch Dressmaking Shears are the best all-around household scissors, and for the kitchen, the OXO Good Grips Kitchen and Herb Scissors are the best for most people. Click and Collect is available or enjoy free UK delivery on selected orders over %pound;150 excl. Gorilla is so thick that wrapping the pine cone and getting a perfect seal was almost impossible. Rated 5 out of 5 by Cirencester plasterer from Best on the market - great product Must be the best scrim tape on the market at the moment, great adhesion to plasterboard or painted walls,I’ve scrimped joints and gone back 3 days later and still stuck solidly, cheaper versions would of been on the floor after 3 days . In 2019, we tested the 15-mil IronForce Heavy Duty Duct Tape. The T-Rex tears easier than Gorilla, but that’s about the only category where it gets the edge. More information on that episode (with pictures of the rigged patch) is here. The adhesive was strong, but not enough to make up for the loss of handling. It isn’t necessarily the strongest, but it had an incredible tack.2 It was the only tape that actually started to hurt my fingers after prolonged use. Both options are also manufactured with an adhesive backer (Sticky FAB) and can be used in various construction applications, such as drywall and plaster applications.These products are also used in industrial insulation applications as a reinforcement for mastics and coatings over insulation. We also tested each tape’s adhesion to itself, but it ended up being a moot point. Many professionals across UK and Europe use this brand for most plastering jobs. Buy online at Gypsumtools today! Good, high-quality tapes designed for general purpose sit in the $8 to $13 range. In fact, our original 2013 testing was so involved that one duct tape manufacturer told us afterward that our work had “set off a firestorm of activity for the development team, as well as some of our competitive analysis...I think we all tend to focus on lab results far more than we should, and you may have cracked the whip a bit on thinking outside the box as far as non-standardized testing.”. Thickness is measured in “mils” (or milli-inches, roughly .0254 millimeters) and tapes vary from as thin as 3 mils to as thick as 17 mils. The most telling is that co-extruded tapes have very small, clearly defined dimples on the exterior of the roll. Over time, particularly during exterior use, the poly and scrim can come apart. If you want a tape to use exclusively outdoors, we recommend Sticky Ass Tape. by Jim Travers, Kit Dillon, and Wirecutter Staff. On the plus side, the 398 tears well and wraps well. It unwinds easily from the roll and tears in a nice, clean, straight line with no annoying strands unwinding along the outer edge. But if you’re someone who tends to use it for long-term solutions, particularly outdoors, we recommend picking up a roll of Sticky Ass Tape. We really thumped on these tapes in order to decide on the best. They also said that it is not ideal on rough surfaces because there is no ‘looseness’ to the glue and it wouldn’t be able to ooze into the uneven surfaces. Duct tape loves to stick to itself. Lewis & Price "Yes, you can use the webbing tape then bond the parts with the cracks and then skim the wall." In theory, it’s technically possible to complete a plastering job without it, but doing so can have severe effects on the quality and durability of the finish. Plastering can be a messy job and you will need to ensure that each piece of furniture or equipment is free from damage for the duration of the project. Duct tape tears along the thread line, so the smaller the space between threads, the cleaner the tear. 63 To do this, use the back end of a pair of scissors to push it into the corner. On another board, they were holding blocks of wood. Arbiton IZO TAPE self-adhesive tape is designed for joining all woodfibre and general underlays and creating a stronger bond with a moisture barrier within the joints.Read more. After all of the research and testing, we found that Duck Max Strength has the most balanced attributes of any of the tested tapes, making it the best choice for the most tasks and a true general-purpose duct tape. Intertape AC36, an 11-mil laminated tape, didn’t excel in any of the tests, coming in behind both Duck Max Strength, Nashua 398, and the 9-mil Scotch every time. Adhesion to wood was a closer competition, but Duck still won out. UL 181B-FX Listed and printed film tape for use on Class 1 Flex Duct in temperatures from -10 F to 210 F. FF 100. It tears off in a straight line, and while it’s flexible enough to wrap around an uneven shape (like the finger of a blown-out glove), it’s also stiff enough that it doesn’t flop over on itself during use. On one tape, the ridges were so extreme that we were unable to get it to sit flat against any surface for more than a day or so. Each tool, whether big or small plays an important role in a plasterer’s job. The tape gets its Military Grade name because it is manufactured to the specifications outlined in the PDF available at this page, which covers “requirements for waterproof tape used in the closure and sealing of fiberboard containers, covering external labels, and general packaging applications.”. To look at the conformability of each tape, we used the tapes to wrap pine cones, as if you were patching the finger on a glove. Paper tape takes some skill to learn. Backing – 100% Fibreglass; Adhesive – Acrylic; Total Thickness – 0.2mm It also holds up to heat and wind almost as well as the Duck. Email: [email protected], Black Edition Elite Premium Finishing Trowels, A Guide to Plastering and Rendering Machines From Us, Everything You Need to Know about Nela Trowels, A Guide to Hiring Rendering and Plastering Machines, Comparison Guide to Fireproofing Machines, A Guide to Buying Plastering and Rendering Materials, Buyers Guide on Plastering Machine Spares, A Comparison Guide on Best Plastering Tools, A Plasterers Guide to Top Plastering Materials, A Guide to the Best Plastering Mixing Drills. You can also get more aggressive tapes loaded with turbo strength and crazy adhesive that can cost over $20, but you probably don’t need that strength and you definitely don’t need the frustration that comes with working with tape that’s too thick and too sticky. If you have limited hand strength, you’re better off with a thinner tape. The tape came off the roll heavily wrinkled and could not sit flat or get a nice seal along the edge. Scrim tape. Extra strong fibreglass mesh. If we wanted strong tape bragging rights, we’d opt for Gorilla instead. The tape measures 2.83 inches by 50.3 yards. Nashua’s 398 was the most like Duck Max, but it’s just not as strong. Part of our range of plastering and rendering supplies is the CATNIC self-adhesive scrim tape with fibreglass mesh. He spent 10 years in high-end construction as a carpenter, foreman, and supervisor. In writing this guide, we dug deep into the fascinating world of duct tape. 1. After about a week and a half, the strips holding the poly square let go. Like most of the other tapes, after seven months, it had released the block of wood and the pieces holding the poly sheet were long gone. In the five years since our original testing, we’ve continued to use and evaluate many of the tested duct tapes. But thick tapes have their own drawbacks. We connected the other side to a come-along (this is a come-along, if that’s a new term to you) attached to a hanging scale. Another way to visually tell the difference is that laminated tapes (at least the two that we tested) have a wrinkled texture. TapeCase TCFSK FSK Facing Tape, Aluminum Foil/Scrim/Kraft Tape - 6" Wide, 50 yd. Trying to wrap a thin, flimsy, wet noodle piece of duct tape can become a frustrating experience as it constantly folds over and sticks to itself. It was still holding to the plywood, but there was significant curling at the edges, proving that it can hold up to a little outdoor use, but that there are better options for long-term fixes. It’s also doesn’t conform to uneven surfaces as well as thinner tapes. The other way to make duct tape is called lamination. But even with this flexibility, it’s still thick enough that it doesn’t constantly flop over on itself during use. Nashua 357 is the tape that the Mythbusters used to build a bridge and lift a car. As Hillary DuMoulin, communications manager at Berry Plastics, explained to us, lamination involves pressing all three ingredients together. Here at Building Supplies Direct, we stock many kinds of scrim, all available in several widths and lengths. The threads that run across the tape determine its tearability. It’s like holding one edge of a piece of paper while trying to rip it down the center. *At the time of publishing, the price was $8. In 1972, duct tape made an emergency fix to the fender of the Apollo 17 moon buggy… on the moon. We also have larger drop film masking tapes that come in sizes such as XL and XXL, which are for projects that require bigger surface protection. Duck Advanced is also a 9-mil tape, but it felt much thinner than the Scotch, possibly because of the lack of wrinkles. For most jobs, we found ourselves reaching for the easier-to-use Duck Max instead. We experimented with a number of other ways to do this, but the come-along exerted nice and even pressure on the tape and gave us the most consistent results. It is both thin and light but maintains outstanding strength. Arthouse Duropolymer Coving Internal Corner - 100mm Pack. For special requirements, we offer heavyweight woven yarns or more exotic yarns with unique properties, such as glass, polyester, nylon, polypropylene, PTFE, aramid, metal, silver, stainless steel, and more. What's in the Box: In our tests, it proved itself to be nearly as strong as Gorilla, but with the added handling of a 13-mil tape. Here, the Sticky Ass hadn’t moved, while the others had all either fallen, shifted, or had at least one area loosen. No other tape we tested has such a good combination of features—strong adhesive, high material strength, and stretchy flexibility—making it the most useful in the widest variety of situations. We’ve tested and dismissed IronForce's Heavy Duty Duct Tape. So during testing, we took these factors into account as well. Protective adhesive tape is used by professionals in covering and protecting surfaces from dust, dirt, and damage. We also have a bigger drop film masking tape that comes in 1100. This is the one to choose for a semi-permanent patch on a hole in your gutter, the rusted-out spot in the truck bed, a fix for a busted lawn rake, or a crack in the the recycling bin. Lays out flat and fast with an easy to remove liner backing. The exterior sample boards show Duck Max Strength to be durable in the elements, but only on a temporary basis. Nashua described the 357 as having a thick adhesive with a viscosity that allows it to easily ‘flow’ over uneven surfaces. Everbuild EVB2EURO48 48 mm x 90 m Euroscrim Tape EuroScrim is a premium quality, quick and easy to apply, self-adhesive scrim tape that is made in Europe to perform! Wirecutter is reader-supported. Photo by Square Mountain Photography The Scrim Will Help You Become A Master Of Light. Duck Max Strength’s strong adhesive sticks well to a variety of materials. Scrim tape is made from fibreglass threads and looks like a mesh and is self-adhesive which … This one wasn’t nearly as strong as the others and it wasn’t that durable outdoors. Best Answer. In these cases, we can work with you to develop custom scrims and tapes to meet your installation's needs. We also supply self adhesive scrim tape to help make the application as easy as possible. Protection and duct tape Plastering Superstore Montis Court (45 and 60 yards are the most common lengths.). When you buy through links on our site, we may earn an affiliate commission. It’s a heavy-duty tape with a big, thick adhesive, so it’s not as flexible as Duck Max and more difficult to tear. Drywall tape, also known as paper tape has a crease along its length which helps to provide perfect angles and corners but is not self-adhesive and can take a little longer to apply. Was this answer helpful? An extremely high tack adhesive coated on a Polyester Scrim with the release liner. Sticky Ass doesn’t have the raw strength of some of the other tapes that we looked at, but on the exterior sample boards it had no parallel. Scrim tape is a newer product and it’s made from fibreglass. Scrim Tape. Instead the tape would wrinkle, stretch, and pucker at the rip line, leaving a ragged edge. Maximum-strength Foil/Scrim/Kraft (FSK) tape for use on scrim-reinforced duct insulation. Each company came back to us with a tape in the 9-to-11–mil range. The Polyken was by far the stickiest on glass (even more than Gorilla), but it started losing its tack on the OSB plywood sooner than the rest and fell off during the fifth week. The manufacturer is based in the UK and specialises in manufacturing adhesives, fillers, and building chemicals. It took the top spot in every single strength test (except for glass). Doug Mahoney is a senior staff writer at Wirecutter covering home improvement. It appears to be hampered by its own structural strength. Fresh off the roll, the air pockets in the adhesive are visible. Despite its relative thinness, it proved to be stronger than some of the 11-mil tapes, but it has too many other drawbacks. Polyken 231 Military Grade had the most distinctive adhesive of the tested tapes. https://www.toolstation.com/plasterboard-jointscrim-tape/p61291 Other sizes are available, but even after 10 years in the construction industry, I’ve never needed anything more than a 2-inch roll. There are two sizes available, 50mm and 90mm. To test each tape’s adhesion to smooth surfaces, we attached strips of each to glass and heated them with a heat gun to a temperature of 150 degrees and then pulled them off. It was extremely flexible and by far the easiest to wrap, but it was so floppy that it often flopped over on itself. A sixth year of testing confirmed Duck Max Strength is still the best all-purpose duct tape available, and Sticky Ass Tape remains the best choice for outdoor use. While loading up the moon buggy, an astronaut accidentally hooked a hammer on the rear fender and tore it off. Easy & rapid application. We performed all structured strength tests at least three times per tape to eliminate the human factor as much as possible. It’s great to use on a flat join because it comes self-adhesive, so it’s ready to stick into place, without the need to add an extra compound or filler underneath. VAT. Updated December 7, 2020 To start, we’ll answer the obvious question. It also has some stretch, so it tightly forms against sharp corners and edges. It lays nice and flat, and it’s easy to get a good seal along the edges. To give them a sense of what we had in mind, we gave the examples of patching a bike seat, repairing a backpack, and fixing a leak in a hose. Answered on 25th Feb 2020 ... "as long as scrim tape is used it would be fine the can skim over." This lack of flexibility also causes problems if you’re bundling something together with the tape. As a professional, you need the best products that are easy to work with and just do exactly what they say! Air bubbles can form between the laminated layers. On this board, Sticky Ass and Gorilla were still fully adhered, while the others were either gone or show dramatic curling, usually along the top edge. Learn more. © 2021 Wirecutter, Inc., A New York Times Company, Our pick for general use: Duck Max Strength, Our pick for exterior use: Sticky Ass Tape, Foil-faced tape, like this Nashua product you’ll often see HVAC installers carrying, Pioneer Pet’s SmartCat The Ultimate Scratching Post. We tested a total of 10 tapes. But the fact is that a 17-mil tape isn’t very malleable at all. Applications: Good bonding to uneven surfaces, Extremely high tack adhesive; Provides excellent initial adhesion to a wide variety of substrates Specially designed adhesive It is an inexpensive type of tape with specific applications. In every strength test, Gorilla was stronger. It’s strong, odor free, and extra tacky – sticking to almost any surface. Each test was run during a single day continuously until completion, so humidity and temperature were constant throughout. Our range of protective tape ensures quick and easy application as well as removal. Masking tape is another versatile accessory used for plastering, painting, and other construction jobs. At 13 mil, Sticky Ass is a thicker tape than Duck Max Strength and is stronger in almost every category. Scrim tape is easy to apply, inexpensive, and essential in making sure your plasterwork retains its perfect finish. The polyethylene sheet plays two roles: It serves as a bonding area for the other two ingredients and creates a waterproof backing. Thinner tapes are too floppy to handle. The trade-off is that it left the most residue of all the tapes. Our Orange Scrim Tape has been uniquely designed to meet the needs of the professional plasterer. We thought this tape was a sure winner. Then we stood on the piece of wood and cranked the come-along until the tape broke. Plasterers 1 Stop Shop also offers another brand of scrim tape which is Euroscrim. Looking For A Custom Scrim or Tape? Some tapes are made with alternatives to rubber-based glues, but those tapes (often made with what’s known as hot melt adhesive) are less reliable in extreme temperatures, and they don’t have the strength of the rubber-based glues, so we dismissed those. Has a self-adhesive backing for easy application. After six weeks, the piece of Sticky Ass on the plywood was still 100 percent adhered. Written by David Kender. They are waterproof and ensure that the underlying surface is completely clean after removal. We did something similar when we tested the adhesive strength, but instead of wrapping the piece around a piece of wood, we adhered the final 2 inches of it to a piece of poplar. As well as along the flat joints, as shown above, Scrim Tape should be applied to all internal corners. The Best Duct Tape of 2020. Photo: Doug Mahoney. Sticky Ass Tape is harder to tear and isn’t as flexible, but it’s very effective for outdoor uses like temporarily repairing a hole in your gutter. It is paramount that they have an array of reliable tools and equipment to produce the best result. Don't leave it cutting across the corner, or the Scrim Tape would just get … The term scrim tape may not sound familiar to you, but it is one of the commonly used plastering supplies. After 60 hours of research and talking with safety experts and mechanics, here are the items we recommend you keep in your car for a roadside emergency. The rolls I looked at were a variety of 35, 40, 45, and 60 yards. If you are looking for plastering tapes, we have products that are ideal for both indoor and outdoor use. These original tests were done in 2013, and in the ensuing years, we’ve continued to use Duck Max Strength and have never found it lacking for regular around-the-house fixes and patches. Co-extruded tapes have a nice smooth finish. In many cases, the numbers I was getting from those tapes were double of what the others were (adhesive strength, material strength, and so on). He also raises sheep and has a dairy cow that he milks every morning. Duct tape is the essential fill-in-the-cracks patching, sealing, and hanging item. Our tapes are manufactured by brands such as Blue Dolphin, which is a trusted brand with over 15 years in the business. These correspond with gaps in the cloth grid and represent all of the places where potential air bubbles could form if the tape were laminated. In addition to our research, we conducted extensive testing, including assessments of material strength, adhesive strength, and adhesion to glass, masonry, plastic sheeting, and wood (painted and unpainted). Duck Max Strength also held to the piece of glass (after being heated to 150 degrees) better than the rest of the general use tapes. The tape seals the joints between panels of plasterboard to prevent cracking in the plaster applied over the top of it. There are visual ways to distinguish a laminated tape from a co-extruded one. All of the tapes are still firmly attached to the piece of poly and most are still holding the blocks of wood (Nashua 357 and Duck Advanced are not), but the other two boards show some more dramatic results. NASA has the whole story here. It’s designed for high heat and conforms very easily to make a nice seal over the uneven surfaces at duct connections. It blew away the competition when it came to material strength, scoring almost 15 pounds higher than the next best and being the only tape to break the hundred-pound mark. Our commercial adhesives, Lok-Lift® and Opti-Grip ®, come in standard sizes that work for most installations. We then tested the long-term durability of the tapes by abandoning four sample boards in a south-facing New England field for seven months. This is a type of tape made from fibre glass or reinforcing mesh that is applied to strengthen plasterboard joints before the application of skim finish. 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