With the wide application of butyl rubber waterproof sealing tapes in the waterproof industry, various "manufacturers" of butyl tapes have sprung up, with different quality and colorful prices.

Butyl rubber has good chemical and thermal stability, the most prominent is air tightness and water tightness. Its air permeability is only 1/7 of natural rubber, 1/5 of styrene-butadiene rubber, and its vapor transmission is 1/200 of natural rubber, and 1/140 of styrene-butadiene rubber.

As the best airtight synthetic rubber material found by humans today, it has excellent low temperature flexibility and aging resistance, and is widely used in various industries.

So, in the face of many butyl tape brands, how do we judge the quality of butyl tape? Today I will introduce to you:

Butyl tape mainly depends on several properties:

Appearance

The appearance of good quality butyl rubber should be bright black, smooth and non-granular, and no air bubbles. It will not stick to the hand after touching it, and it will not take off black.

2. Packaging

Regular manufacturers will have a certificate of conformity, company name, company address, telephone and other information. The manufacturer can provide product inspection reports.

3. Shelf life

Butyl tape generally has a shelf life of 2 years, even good glue can be stored for 3 years, and the general quality of shelf life below 2 years is not good.

 4. Use effect

Good quality butyl tape can be applied smoothly without blocking the gun head or drawing. After a long time of use, the machine is still as clean as new. The bonding glass has strong adhesive force and will not cause displacement after a long time.

 5. Glue area

Nowadays, in order to meet the requirements of large volume and height of butyl rubber on the market, some manufacturers do tricks on the raw materials and use inferior raw materials to accumulate the height in order to meet the customers' intuitive requirements for height. Much smaller than good quality butyl tape.