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JS-971
Low modulus silane modified sealant

JS-971 low modulus silane modified sealant is a single component, low modulus, neutral curing sealant based on silane modified polymers. JS-971 product does not contain solvents and is pollution-free to the environment. At the same time, it can produce superior adhesion for most building materials without the need for primer.

Product features

〔1〕 Solvent free, PVC free, isocyanate free, non-toxic, odorless, pollution-free, and fast curing;

〔2〕 Surface Applicability: Compatible with most industrial paints, it can be sprayed after surface drying, which does not affect the curing rate;

〔3〕 Easy to use: excellent thixotropy and extrudability, wide applicable temperature range (- 40 ℃ to 100 ℃) after curing;

〔4〕 Good adhesion: Excellent adhesion performance for most building materials such as stone, aluminum, ceramics, and cement components; No pollution to porous substances;

〔5〕 Excellent weather resistance, aging performance, excellent tensile and compressive resilience;

〔6〕 Neutral curing, non corrosive to building materials such as stone and cement, overcoming the disadvantage of ordinary silicone adhesive that can easily contaminate the substrate.

Product parameters
Model JS-971  
Technical indicators   Lnspection standards
Color Black, white, gray, etc

 

Curing method

Moisture curing

 

Density(g/cm³)

1.50±0.1

GB/T13477.2-2003

Non volatile matter%

≥99.5

GB/T2793-1995

Sag(mm)

≤2

GB/T13477.6-2003

Surface drying time(mins)

30-60

GB/T13477.5-2003

Curing speed (mm/24h)

2-4

 

Curing time (humidity 50 ± 5%, temperature 23 ± 2 ℃) 3-14 days

After 21 days of curing at a humidity of 50 ± 5% and a temperature of 23 ± 2 ℃:

Hardness, Shore A 20-40 GB/T531.1-2008

Constant elongation adhesion100%

No damage

GB/T13477.8-2017

Elongation at break(%)

≥350

GB/T528-2009

Breaking tensile strength(MPa),≥

≥1.0

GB/T528-2009

Elastic recovery rate

≥60

GB/T13477.17-2017

Pollution

NO Pollution

JC/T 881-2001 Appendix A
Color and packaging

JS-971 low modulus silane modified sealant is available in three standard colors: black, white, and gray. Other colors can also be provided according to customer needs.

JS-971 low modulus silane modified sealant is packaged with a net capacity of 590mL aluminum plastic film for soft packaging.

Storage and expiration date

JS-971 low modulus silane modified sealant is packaged in a dry and ventilated environment, with a shelf life of 12 months from the date of production.

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