'Shurtape MB-100CT' is discontinued and no inventory now remains.

Product Description

Shurtape MB 100CT Metal Building Insulation Seaming Tape has a unique three-layer construction – made up of polypropylene film, fiberglass reinforcing scrim, and bleached metalized polyester. This makes it the ideal solution for seaming and sealing tape for VR-R plus insulation backings. MB 100CT offers a seamless match when sealing, seaming, and joining metal building insulation for even your toughest building and construction projects.

Shurtape MB 100CT Metal Building Insulation Seaming Tape works in cold temperatures and is heavy duty, non-permeable, and moisture and mold resistant to ensure a permanent, long-lasting hold. Shurtape MB 100CT is designed to withstand temperatures from -20°F to 220°F.

Product Features

  • 3 layer construction - metabolized polypropylene film, multi-directional fiberglass reinforcing scrim and bleached kraft
  • Mold and moisture resistant
  • Able to withstand temperatures from -20°F to 220°F
  • Permanent, heavy duty, and long lasting seal
  • UV resistant for lasting durability


Technical Information

Shurtape Metal Building Insulation Seaming Tape (MB-100CT)
  • Standards Met: Tested in accordance with UL 723
  • Carrier/Backing: White Metalized Polypropylene
  • Adhesive: cold temperature acrylic   How are adhesives different?
  • Thickness: 10.8 mils (carrier, adhesive, liner) 6.9 mils (carrier, adhesive)   What is mil thickness?
  • Adhesion: 37 ounces per inch (to stainless steel test panel)
  • Tensile Strength: 26 pounds per inch (longitudinal)
  • Application Temperature: -20°F to 220°F
  • Elongation: 5%
  • Core: 3" diameter
  • Overall Grade/Function: Insulation
  • Country of Origin: China
Note: Specifications are those given by manufacturers and are not tested for accuracy.

Question & Answers

[ viewing questions 1 through 2 of 2 total ]
D. Maestas Dec 06, 2022
QUESTION: Is this tape still available for purchase? If not, is there a good substitution for Shurtape MB-100CT Metal Building Insulation Seaming Tape?
ANSWER: Unfortunately not, we are all sold out now. We do not offer anything constructed exactly like MB100, but an FSK tape like Polyken 438X would probably be the closest although it is silver in color and not white.
Josh E. Jan 15, 2020
QUESTION: Does this tape have a peel off backing
ANSWER: No, there is no release liner on that tape (it is self-wound). Thank you.

User Reviews

[ viewing reviews 1 through 4 of 4 total ]
John Z. Verified Buyer Jan 14, 2020
Excellent quality. Works great!
Shurtape MB-100CT Metal Building Insulation Seaming Tape
Excellent quality. Works great!
Matthew M. Verified Buyer Dec 13, 2019
Shurtape MB-100CT Metal Building Insulation Seaming Tape
Drew H. Verified Buyer Oct 02, 2019
Moderate adhesive
Shurtape MB-100CT Metal Building Insulation Seaming Tape
Quick delivery and easy purchase process. Application of tape lacked the adhesive performance desired.
marion d. Verified Buyer Jun 27, 2019
Received order in a timely
Shurtape MB-100CT Metal Building Insulation Seaming Tape
Received order in a timely fashion and am very satisfied with the product. Will order more in the future.
Made in the USA
hot melt rubber (synthetic)
Offers the widest range of application flexibility available. Exhibits excellent processing performance whether manually or automatically applied. Has superior tensile strength, adhesion properties and holding force which ensures consistent, reliable seals. Hot melt adhesive will bond faster to a surface which is referred to as quick-grab or quick-stick. It typically has higher tack (will feel stickier to the touch), but is also softer. It has lower heat resistance, shear resistance, and sometimes UV resistance than an acrylic adhesive. NOTE: it is called hot melt because the adhesive is applied hot by the manufacturer and then hardens as it cools (you do not need to apply heat to the tape yourself).
natural rubber
Properties are similar to that of hot melt rubber, but natural rubber often holds where other adhesives won't (recycled fibers, dust, cold, heat and heavy loads). It provides good overall adhesion and moisture resistance.
Offer excellent performance, especially for applications in temperatures less than 40°F and greater then 120°F. It provides excellent clarity, has high shear strength, is usually more permanent/durable even when exposed to moisture, and it ages well over extended periods in fluorescent and sunlight. Since it remains clear for the life of the application and does not yellow over time it is ideal for applications such as sealing white cartons. While it has good initial adhesion it does take 24-48 hours to cure and to achieve its maximum bond strength (has gradual adhesion buildup). Another difference between hot melt rubber and acrylic adhesive is if you fold tape over making the two adhesive sides touch the acrylic adhesive will remain attached to the carrier (e.g. paper, film) while a hot melt adhesive will stick to itself and pull off of the carrier. It is the best choice for clarity, UV resistance and aging characteristics.
Is great for extreme temperature applications since silicone adhesive can work in continuous operating temperatures from -100°F to 500°F. They also exhibit good chemical resistance, retain electrical properties, and remove cleanly with little or no residue.
zinc oxide
Zinc oxide based adhesive formula is a skin-friendly adhesive which is commonly used on sports medicine tapes.
Thickness, AKA caliper or gauge, refers to the distance from one surface of a tape backing, or adhesive, to the other.
1 mil = 1/1000 of an inch
Examples: 1/16 inch = 62.5 mils; 1/32 inch = 31.25 mils
The cut level indicates how many grams of cutting load a glove can withstand from a sharp blade before being penetrated.
Lower gauge gloves are heavier - have thicker construction, fewer stiches knitted per inch and offer less dexterity.
Higher gauge gloves are lighter - have thinner/finer construction, more stitches knitted per inch and offer more dexterity.
Gloves offered typically runs from 7 to 18 (12 and 13 are in the middle of the scale).
Shopping Cart Summary
Adhesive Tape Blog
Video Resource Library
How-To Resource Articles