ChemLink DuraLink 50 Adhesion Sealant

$151.93

Advantages of ChemLink DuraLink 50 

    • +/- 50% joint movement.
    • Bonds to Kynar 500® PVDF coated metal.
    • Solvent free, 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 (See limitations).

Duralink 50 is for up to 50% joint movement!

See Duralink 35 for up to 35% joint movement

Chemlink Size: 20oz sausage (case of 12)
Color: White
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Vendors: ChemLink SKU: F1261WH
  • Easy Returns

    Easy Returns

    Return within 30 days of purchase date

  • Technical Support

    Technical Support

    Available 9am - 5pm EST Mon-Fri

  • Customer Support

    Customer Support

    Available 9am - 5pm EST, Mon-Fri

  • Fast Shipping

    Fast Shipping

    Ships within 48 hours if in stock

Advantages of ChemLink DuraLink 50 

    • +/- 50% joint movement.
    • Bonds to Kynar 500® PVDF coated metal.
    • Solvent free, 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 (See limitations).

Duralink 50 is for up to 50% joint movement!

See Duralink 35 for up to 35% joint movement

ChemLink DuraLink 50 Super Adhesion Sealant

Chemlink DuraLink 50 is a moisture-curing super-adhesion sealant that cures quickly to form a soft rubber seal. DuraLink is designed for use with many building materials including Kynar 500® PVDF coated metals, glass, EIFS, galvanized steel, masonry, and many other common building materials.

DuraLink is SWR Institute validated for +/-50% joint movement. DuraLink is an extremely elastic moisture-curing sealant designed for use in metal architecture, curtain wall construction, and joints subject to movement. DuraLinks adhesion to difficult surfaces permits its use on anodized metal and coatings such as Kynar 500® PVDF.

DuraLink will not stain absorbent stone substrates like limestone or marble. DuraLinks unique polyether chemistry eliminates out-gassing on green concrete and protects against "sun tanning" or discoloration when exposed to ultraviolet light.

Compatible Substrates

  • Kynar 500® PVDF Coated Metal
  • Brick, Concrete, and 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

Basic Uses

  • Window and door frames
  • Siding
  • Pre-cast concrete
  • Weather Sealing
  • Block and Masonry
  • Cove Joints
  • Curtain Walls
  • Parapets
  • Expansion joints
  • Transportation

Available Sizes

  • Carton of 24 - 10.1 oz cartridges (F1260 - all colors normally in stock)
  • Carton of 12 - 28.0 oz cartridges (F1210 - only Gray - special order)
  • Carton of 12 - 20.0 oz sausages (F1261 - most colors in stock, others made-to-order)
  • 2-gallon pail, 5-gallon pail, and 50-gallon drum are made-to-order

Color

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

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 grams/liter ASTM D2369 EPA Method 24 (tested at 240°F / 115°C).
  • Chemlink Duralink 50 Product Page
More Information:

Chemlink Duralink 50 Installation

Bonding surfaces should be clean, dry, and free from all contamination that may inhibit the sealant's performance. Isopropyl alcohol is an effective cleaner for surface preparation. Install all joint applications per ASTM and SWRI recommendations and guidelines.

Please contact customer service for application guidelines for temperatures below 32 degrees F (0 degrees C). Maintain sealant at room temperature before application to ensure adequate tooling and adhesion. This product sets rapidly upon exposure to moisture.

  • Weight 25 lbs
  • Color Almond, Aluminum Gray, Black, Dark Bronze, Forest Green, Gray, Limestone, Medium Bronze, Stone, Tan, Terra Cotta, Weathered Wood, White
  • Chemlink 10.1oz cartridge (case of 24), 20oz sausage (case of 12), 28oz cartridge (case of 12)

  • 5
    422 (87.7%)
  • 4
    35 (7.3%)
  • 3
    15 (3.1%)
  • 2
    2 (0.4%)
  • 1
    7 (1.5%)
95% of customers rate this company 4- or 5-stars
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  • 1 ★ Reviews
Stephen E. Verified Customer
11-09-25

Product was what I expected and delivered as promised.

D.O. Verified Customer
11-08-25

Wish I had found you sooner! Arrived quickly, good correspondence. I never wondered what about the status of my order. Wont hesitate to buy from you again.

Raymond S. Verified Customer
11-08-25

Not criticisms but observations for what they're worth. Easy purchase but free delivery was slow: October 29 to November 6, 2025. Faster mail service makes this product's market price cost prohibitive on your sight. Time constraints are less a factor for small DYS homeowner projects, but larger project and contractors, it creates an undue consideration. Key and foundational shipping offsets of large big-box stores and online retailers are quantity purchases and 'membership fees,' the latter being the most important key.

Cassandra P. Verified Customer
11-01-25

Its nothing like what I thought it was but buying and shipping process was smooth.

Shawn S. Verified Customer
11-01-25

Easy ordering and fast delivery

Sophia Verified Customer
10-31-25

I spoke with the person in the Technical Support department who listened and understood my complicated circumstances and made the perfect recommendation. I received the product within a couple of days and before the weekend ended, the job was complete and I am very pleased with results. Thank you, Eco Building Products for your support and product recommendation.

Luis J. Verified Customer
10-26-25

Good jop

Ed G. Verified Customer
10-25-25

The staff gave me good advice on how the products work and which ones to use. And they shipped it here really fast.

Jillian B. Verified Customer
10-25-25

I didn't get the one I wanted but was quickly offered a different one or wait till more came in.

Jean H. Verified Customer
10-24-25

Thumbs up

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Customer Reviews

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P
Perry Richardson

Great product fast shipping.

Chemlink DuraLink 50 Super Adhesion Sealant

ChemLink DuraLink 50 Adhesion Sealant

$151.93