Discover the Benefits of ChemLink DuraLink 35 Multi-Purpose Adhesion Sealant

ChemLink DuraLink 35 is a multi-purpose, resilient joint sealant that combines economy and high performance. It is ideal for a wide range of applications where joint movement requires compression and extension in excess of 35%. Because DuraLink 35 is a moisture-curing polyether sealant, it is effective in damp, dry or cold climates and is free of solvents.

DuraLink 35 will not shrink upon curing, bubble on damp surfaces as polyurethane sealants often do, or discolor when exposed to UV light. It has excellent elastic properties and adheres to most construction materials including difficult surfaces such as Kynar 500® PVDF and other anodized metals and coatings. DuraLink 35 can be applied to damp surfaces at temperatures as low as 32°F (0°C).

Key Features

• ±35% Joint Movement — SWRI validated
• Bonds to Kynar 500® PVDF coated metal
• Solvent-Free — Very Low VOC, 100% solids, will not shrink
• Non-Slump — applies vertically and overhead
• 30-Minute Skin Over
• No Outgassing on damp surfaces
• Color Stability — will not suntan
• Paintable within 24 hours
• Isocyanate-Free
• Available in 13 Stock Colors
• Made in the USA — ISO 9001:2015 certified processes

Applications

• Window and door frames
• Siding
• Pre-cast concrete
• Weather sealing
• Block and masonry
• Cove joints
• Curtain walls
• Parapets
• Expansion joints
• Transportation

Compatible Substrates

Kynar 500® PVDF Coated Metal, Brick/Concrete/Stone, Galvanized Metal, EPDM and SBS Mod Bit, Aluminum, EPS Foam, Engineered Plastics/PVC, B.U.R. (Built-Up Roofing), Glass, Fiberglass FRP, James Hardie Board, Vinyl Siding

Available Colors

White, Gray, Black, Stone, Tan, Almond, Limestone, Dark Bronze, Terra Cotta, Aluminum Gray, Medium Bronze, Forest Green, Weathered Wood

Technical Specifications

Performance Standards

• ASTM C920, Type S, Grade NS, Class 35, Use T2, NT, M, A, G and O
• SWRI Validated for ±35% joint movement

Regulatory Compliance

• Conforms to OTC Rule for Sealants
• Meets requirements of California Regs: CARB, BAAQMD and SCAQMD
• Conforms to California Proposition 65
• Conforms to USDA Requirements for Non-food Contact

Green Standards

• LEED 2.2 for New Construction and Major Renovations: Low Emitting Materials (Section 4.1) — 1 Point
• NAHB Model Green Home Building Guidelines: 5 Global Impact Points
• VOC Content: less than 19 g/L

Available Sizes

• Carton of 24 — 10.1 oz cartridges (all 13 colors in stock)
• Carton of 12 — 28.0 oz cartridges
• Carton of 12 — 20.0 oz sausages
• 2-gallon pail, 5-gallon pail, and 50-gallon drum (made-to-order)

Shelf Life

12 months from date of manufacture when stored at 70°F / 21°C with 50% relative humidity.

Warranty and Documentation

Visit chemlink.com for the full warranty, Safety Data Sheet, and Technical Data Guides.

Technical Data Sheet (TDS): Download DuraLink 35 TDS (PDF)

Product Page: ChemLink DuraLink 35 Official Page

Superior Adhesion for Various Surfaces

The ChemLink DuraLink 35 multi-purpose adhesion sealant offers exceptional bonding capabilities on a wide variety of surfaces including metal, wood, glass, and concrete. This sealant is engineered to maintain durable adhesion even under extreme environmental conditions, making it ideal for both indoor and outdoor applications. Its strong bonding properties ensure long-lasting seal integrity, eliminating the need for frequent repairs and reapplications, which saves time and labor costs for professionals working on construction, maintenance, or repair projects.

Durability and Weather Resistance

This multi-purpose adhesion sealant stands out for its robustness and resistance to weather elements such as rain, UV rays, and temperature fluctuations. ChemLink DuraLink 35 forms a flexible yet tough barrier that prevents moisture penetration and resists cracking or shrinking over time. These qualities make it an excellent choice for sealing joints, gaps, and cracks that are exposed to varying climatic conditions, ensuring the structural integrity of buildings and other installations remains intact for years.

Easy Application and Efficient Packaging

Packaged conveniently as a case of 24 cartridges, ChemLink DuraLink 35 enables professionals to manage large-scale projects with ease. The sealant’s formulation ensures smooth and consistent extrusion, allowing for precise application and minimal waste. Its fast curing time further enhances productivity, helping users achieve clean, neat seals quickly. Whether applied manually or with a pneumatic tool, this sealant supports efficient workflow without compromising quality or adhesion performance.