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JS-905
Silane modified sealant

JS-905 is a single component, neutral curing environmentally friendly silane modified polyether sealant. JS-905 has the characteristics of neutral curing, extremely low VOC environmental friendliness, excellent weather resistance, and excellent adhesion to most building materials.

Product features

〔1〕 Room temperature curing, non sagging, solvent free, environmentally friendly, extremely low VOC, and no irritating odor;

〔2〕 Good adhesion and wide adaptability of the substrate;

〔3〕 Good chemical corrosion resistance and waterproofing;

〔4〕 Excellent weather aging resistance;

〔5〕 Excellent seismic, impact, and noise resistance

Product parameters
Specification maker: The following values are not applicable for specification development. Before formulating the specifications for this product, please contact your local Zhijiang sales office or Hangzhou liaison office.
Testing standards Test items Unit Numerical value
Test at a temperature of 23 ± 2 ℃ and a relative humidity of 50%

GB13477

Flow, sagging or sagging

mm

≤2

GB13477

Density

g/ml3

1.50±0.1

GB13477

Surface drying time

min

10-60

  Deep curing mm/24h 2-4
Curing time (temperature 23 ± 2 ℃, relative humidity 50%) 3-14 days
The product is cured for 28 days at a temperature of 23 ± 2 ℃ and a relative humidity of 50%
GB13477 Hardness, Shore A ShoreA 15-40

GB/T 528

Elongation at break

%

≥200

GB13477

Elastic recovery rate

%

≥60

GB13477

Displacement ability

%

±20

GB/T 528

Breaking tensile strength

MPa

≥0.8

GB13477

Constant elongation adhesion

 

No damage

GB13477: Experimental Methods for Chinese National Standard Building Sealing Materials. Comply with the 20LM standard in GB/T 14683-2017.
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

This product can be colored using traditional methods after surface drying, including epoxy resin and acrylic acid coatings. Coatings containing high solvent components such as glossy enamel or high oil based coatings can cause the adhesive surface to become soft. It is recommended to use water-based environmentally friendly coatings.

In order to achieve the best appearance and performance, the coating must be close to the tensile strength of this product. For areas with adhesive thickness less than 3mm, coloring can be carried out after 24 hours. For thicknesses greater than 3mm, coloring can be carried out after 48 hours.

JS-905 silane modified sealant is a 500ml aluminum plastic film soft packaging.

Storage and expiration date

It is recommended to store in a cool and dry place at 5-25 ℃ for a storage period of 12 months.

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