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Help CenterLow Modulus Silane Sealant
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This product is made of modified silane material, which is solvent-free, anti pollution after curing, environmentally friendly, low modulus, high elongation, excellent heat resistance and anti-aging ability. This product complies with the environmental requirements of GB 33372-2020 "Limits for Volatile Organic Compounds in Adhesives" and meets the EU ROHS and REACH environmental standards. To meet the requirements of deep curing, 1:1 two-component sealant can be produced.
QLD939Paste
It is a thixotropic paste used for sealing and bonding LED lamps, electronic components, and electromechanical parts.
QLD939Half Flowing,
It used for sealing, bonding and fixing LED lamps and electronic components.
QLD939Flow self leveling,
It used for sealing LED lamps, electronic components, and electromechanical parts.
Performance indicators
Brand number |
QLD939Paste |
QLD939Half Flowing |
QLD939Flow |
Appearance |
Gray paste like substance |
Grey Half Flowing |
(Grey self leveling) |
Sag degree (mm) |
≤2 |
≤6 |
-- |
Density (g/cm3) |
1.4±0.2 |
1.4±0.2 |
1.2±0.2 |
Table drying time (min) |
20~50 |
20~50 |
20-50 |
Curing speed (mm/24h) |
2.0-3.0 |
2.0~3.0 |
2.0~3.0 |
Tensile strength (Mpa) |
≥0.7 |
≥0.5 |
≥0.4 |
Elongation at break (%) |
≥650 |
≥750 |
≥850 |
Elastic recovery rate (%) |
≥70 |
≥70 |
≥70 |
Tensile modulus(MPa) |
≤0.4 |
≤0.4 |
≤0.4 |
Fixed tensile adhesion |
No damage |
No damage |
No damage |
Temperature resistance range (℃) |
-40~120 |
-40~120 |
-40~120 |
Packaging specifications |
2.6L/Pail，25kg/Pail，400ml/Twin tube |
||
Operation process
1. The bonding surface should be free of oil stains, dust, impurities, etc;
2. Cut the glue nozzle into the required size and shape according to the process requirements;
3. Cut off the sealant seal, install the nozzle, and insert it into the glue gun;
4. Apply sealant evenly to the joint, with the thinnest part being greater than 1mm; When using a pneumatic gun, the air pressure should be controlled at 0.2~0.4Mpa.
5. After the product has dried, it can be repaired using traditional methods to remove excess glue.
matters needing attention
◆Avoid construction in environments below 5 ℃ and humidity below 20%;
◆Pneumatic pressure must not exceed 0.5Mpa. If it exceeds this limit, gas will enter the hard packaging tube and cause colloidal bubbles;
◆Due to the high solvent content in the coating, the surface of the adhesive will become soft. In order to achieve the best appearance and performance, coloring should be carried out after 24 hours of gel curing;
◆ Sealed storage in a cool and dry place, with a storage period of 6 months. After expiration and passing inspection, it can still be used.
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