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JS-935
Silane modified sealant

JS-935 Silane Modified Sealant is a high-quality, single component, paintable, and pollution resistant neutral modified sealant based on silane modified polyether polymers. This product is solvent free, isocyanate free, and PVC free. It is odorless and environmentally friendly, and can solidify when exposed to moisture in the air. The product is used for seam sealing in elevator cars, containers, car bodies, train carriages, ships, metal structures, machinery, electronics, plastics, air conditioning, clean rooms, ventilation equipment, etc., playing a bonding and fixing role.

Product features

〔1〕 Environmental protection products: solvent-free, PVC free, isocyanate free, non-toxic, odorless, and pollution-free;

〔2〕 Surface Applicability: Compatible with most industrial paints, it can be sprayed after surface drying without affecting the curing rate;

〔3〕 Easy to use: excellent thixotropy and extrudability, wide temperature range.

〔4〕 Good adhesion: Excellent adhesion performance to most metals such as aluminum, stainless steel, coated steel, zinc, copper, as well as PVC and polyester materials;

〔5〕 Excellent weather resistance, aging performance, superior 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
Main parameters of JS-935
Model

JS-935

 

Technical indicators

 

Lnspection standards
Color Black, white, gray, etc

 

Curing Method Moisture cure

 

Density(g/cm3)

1.45±0.05

GB/T 13477.2-2003

Non volatile matter %

≥99

GB/T 2793-1995

Sag(mm)

≤2

GB/T 13477.6-2003

Surface drying time(mins)

5-15

GB/T 13477.5-2003

Curing speed(mm/24h)

3.5

 

Curing time (humidity 50 ± 5%, temperature 23 ± 2 ℃) 3-7 days
The product is cured at a humidity of 50 ± 5% and a temperature of 23 ± 2 ℃ for 7 days:
Hardness, Shore A

35-50

GB/T 531.1-2008

60% constant elongation adhesion No damage

GB/T 13477.8-2003

Elongation at break(%)≥

300

GB/T 528-2009

Breaking tensile strengthMPa),≥

2.5

GB/T 528-2009

Tear strength(N/mm),≥

Tensile shear strength(MPa),≥

10

2.2

GB/T 529-2008

GB/T 7124/2008

 

The data in the table is for reference only, please refer to the measured data
Operation and Safety
  • Do not contact uncured sealant products with food or cosmetics; Uncured sealant should not come into contact with the skin for a long time;
  • If the sealant accidentally enters the eyes, it must be immediately rinsed with a large amount of water and then checked by a doctor; Place the product out of reach of children.
Color and packaging

JS-935 silane modified sealant is available in three commonly used standard colors: black, white, and gray. Other colors can also be provided according to customer needs

Storage and expiration date

When JS-935 silane modified sealant is packaged in a dry and ventilated environment with a temperature of 27 ℃ or lower, the product has a shelf life of 12 months from the date of production.