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ChemLink DuraLink 35 Sealant White 10.1oz Cartridge
Chemlink DuraLink 35 is a multi-purpose, moisture cure, elastomeric sealant that combines economy and high performance for uses from window sealant to sealing joints in door frames. DuraLink 35 has excellent elastomeric properties which is ideal for a wide range of applications.
- Isocyanate free
- +/- 35% joint movement
- 100% solids - will not shrink
$6.97
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Orders over $300 Ship Free!
SKU
17245
ChemLink DuraLink 35 Sealant White 10.1 oz Cartridge
DuraLink 35 is a moisture-curing polyether joint sealant formulated for building joints with +/- 35% movement. It is solvent free and isocyanate free, applies without slump on vertical and overhead joints, and can be installed on damp surfaces and in cold conditions down to 32 F (0 C). DuraLink 35 is designed to avoid bubbling on damp surfaces, resist UV discoloration, and maintain stable cure characteristics without visible shrinkage.
Key Features
- Moisture-curing polyether sealant that performs in damp, dry, or cold climates.
- Solvent free, 100% solids and isocyanate free.
- Non-slump gun grade for vertical and overhead joints.
- Skin over / tack-free time is approximately 40 minutes.
- No outgassing on damp surfaces and no visible shrinkage after cure.
- Color stability for exterior exposure and UV resistance.
- Paintable within 24 hours (verify coating compatibility before production use).
Applications
- Expansion joints and weather-sealing joints in building envelopes.
- Window and door frames, siding details, and parapets.
- Block and masonry joints and cove joints.
- Joints on concrete, brick, stone, glass, metals, and coated metals where adhesion is required.
- Projects where joint movement requires extension and compression in excess of 35%.
Technical Specifications:
| Property | Value |
|---|---|
| Technology | Moisture-curing polyether |
| Movement Capability | +/- 35% (ASTM C920, Class 35) |
| Consistency | Gun grade, zero slump |
| Viscosity | 1,300,000 cp +/- 300,000 cp (Brookfield RVF TF Spindle, 4 RPM, 73 F / 23 C) |
| Density | 12.0 +/- 0.2 lb/gal (ASTM D1475) |
| Tack-Free Time | 40 minutes (45 +/- 5% RH) |
| Elongation at Break | 420% (ASTM D412) |
| Tensile Strength | 230 psi (ASTM D412) |
| Peel Strength | 25 pli (ASTM C794) |
| Lap Shear Strength | 225 psi (ASTM D1002) |
| Hardness | Shore A 31 (ASTM C661) |
| Low Temperature Flexibility | Pass at -10 F (-23 C), 1/4 inch mandrel (ASTM D816) |
| Shrinkage | No visible shrinkage after 14 days |
| Service Temperature | -40 F to 200 F (-40 C to 93 C) |
| VOC Content | Less than 22 g/L (ASTM D2369, EPA Method 24) |
| Application Temperature | Can be applied to damp surfaces at temperatures as low as 32 F (0 C) |
| Packaging (this product) | 10.1 oz (300 ml) cartridge |
| Shelf Life | 12 months for cartridges when stored at 70 F (21 C) and 50% RH |
| Applicable Standards | ASTM C920 Type S, Grade NS, Class 35 (Uses NT, T2, M, G, A, O); TT-S-00230-C Type II Class B; CRD-C-541 Type II Class B; CAN 19, 13-M82 |
Frequently Asked Questions
Can DuraLink 35 be applied to damp substrates?
Yes. It is designed to be effective on damp surfaces and can be applied in cold conditions down to 32 F (0 C). Remove visible and standing water before application.
What joint movement rating does it meet?
DuraLink 35 is rated for +/- 35% movement and complies with ASTM C920 Class 35 requirements.
What joint design should be used?
Install joints per ASTM and SWR Institute guidance. Joint depth is typically one-half the joint width (1:2 depth-to-width). Use a backer rod sized about 25% larger than the joint opening to control depth and avoid three-point adhesion.
How soon can it be painted?
It is listed as paintable within 24 hours. Field test the specific coating system for compatibility and cure behavior before full installation.
What is the service temperature range?
Service temperature is -40 F to 200 F (-40 C to 93 C).
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