Refuse to suffer losses! Choose high-quality butyl tape from 6 aspects.

With the continuous development and application of butyl rubber’s waterproofing properties, a variety of butyl rubber products have been widely used in various industries.

Butyl tape is by far the best air-tight synthetic rubber material and is widely used. When the application is widespread and the demand is large, the quality of the products on the market will be uneven, and some are even less expensive than asphalt. So how to distinguish high-quality butyl rubber? S2 will show you below Let’s learn about it from six aspects.

1.Maintaining Adhesion

Regarding the holding power, the “Butyl Rubber Waterproof Sealing Adhesive Tape” JCT 942-2004 standard is to stick a 70*25mm butyl tape sample on two steel plates, and then hang it on the steel plate with a one kilogram weight. , butyl tape must persist for 20 minutes without falling off before this indicator is qualified.

2. Peel Strength

This is a very important parameter for judging the quality of butyl rubber. The standard requires greater than or equal to 0.6N/mm. This is a basic judgment parameter. However, many products on the market now are relatively soft and have unqualified peel strength. For products, the bonded surface will warp if there is slight stress and temperature.

3. Heat Resistance

According to industry standards, butyl tape needs to be at 80°C for 2 hours without cracking, flowing, or deformation to be considered a qualified product. Generally, butyl rubber products are mostly used in roofing, and waterproofing of exterior facades is common; if the requirements are not met, the waterproofing and sealing properties will be greatly reduced.

4. Elastic Recovery Rate

The so-called elastic recovery means that after stretching the butyl tape to a certain extent, it can recover and shrink on its own. The greater the shrinkage ratio, the higher the performance of the tape and the more glue it contains. So when choosing, you can try stretching it to see how the resilience is.

5. WeatherResistance

The aluminum film on the surface of single-sided butyl tape is the key to weather resistance, reflecting UV rays and increasing the strength of the tape. In fact, it is best not to use butyl tape directly in buildings. The most common PET aluminum-coated film composite butyl tape on the market now. The PET film has been exposed to direct sunlight for several months or up to half a year, although the aluminum foil is still exposed. It can reflect ultraviolet light, but it has no strength. It will break when pressed with a finger. The PET film will break when there is external stress.

6. Manufacturer

The best choice is to choose a reliable and powerful manufacturer to cooperate with. For example, S2, as a professional waterproof tape production factory, we provide you with reliable quality assurance so that you have no worries.