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CLK Silicone Sealant

Brand: Nelson

Nelson Firestop Sealant (CLK) is a one part, non-sag, silicone flexible sealant used to protect from the spread of fire, smoke, gases and water. 

It is designed for applications of through stop penetrations and in construction joints.
Features
  • Elastomeric (flexible cure).
  • Up to 4 hour rating.
  • Red, silicone based.
  • It is water resistant.
  • Thixotropic consistency.
  • Acoustically tested, reduces noise transmission.
  • Non-sag: 0.29 kg (10.3 oz) tube, 304 milliliters (18.5 cubic inches), 12 per carton.
  • Non-sag: 2 gallon pail, 7.6 liters (462 cubic inches).
  • Non-sag: 5 gallon pail, 19 liters (1155 cubic inches).
  • Self-leveling: 0.29 kg (10.3 oz) tube, 304 milliliters (18.5 cubic inches), 12 per carton.
  • Self-leveling: 5 gallon pail, 19 liters (1155 cubic inches).

Specifications

Brand

Additional NEC / CEC Compliances

  • ASTM E-84, Flame Spread, Smoke Developed. ASTM E-90 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions & Elements

Application Temperature

  • +4° & +43° C (+40° & +110° F)

Cure Time

  • Less than 2 Weeks for 12.7 mm (1/2) Thickness

NEC/CEC Certifications & Compliances

  • UL 1479 & ASTM E-814, Test Method for through Stop Fire Penetrations. UL 2079 & ASTM E-1966, Test Method for Fire Resistance of Building Joint Systems. ASTM E-90 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of B

Service Temperature

  • -18° C & +43° C (0° F & +110° F)

STC Rating

  • 52

Storage & Handling

  • It Should be Stored at Temperatures between +4° C & +32° C (+40° F & +90° F). It Should be Protected from Freezing. when Properly Stored, the Expected Shelf Life of CLK is 18 Months from Date of Manufacture

Test Compliance

  • Underwriters Laboratories Inc., Fill, Void or Cavity Material (XHHW). Factory Mutual (FM), U.S. Coast Guard, ULC, U.S. Navy & Coast Guard (164.138/3/0, 164.138/2/0). ABS (American Bureau of Shipping) (02-HS261620B-1-PDA). City of NY, NY, Department Of

Testing Data

  • For Specific Test Criteria, Refer to the UL Fire Resistance Directory

VOC Content

  • Non-sag: 57.8 G/l. Self-leveling: 50.0 G/l
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