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HOME » Construction Sealants, Silicones Sealants, Glazing Tapes, Tools, and Adhesives » Acrylic Latex Caulks » CRL 321 Acrylic Latex with Silicone » 321W

CRL White 321 Acrylic Latex with Silicone

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Product Details:

Paintable and Easily Cleaned Up with Soap and Water
Can be Used on Exterior or Interior Surfaces
Mildew Resistant
40 Year Warranty

CRL 321 Acrylic Latex with Silicone is a special blend of silicone and acrylic latex that provides superior primerless adhesion to building materials such as wood, brick, glass, plastic, metal and ceramics. CRL 321 is mold and mildew resistant, and is paintable with oil or latex based paint. A truly versatile caulk, CRL 321 also features easy tooling and water clean up. The Silicone gives it flexibility, the Acrylic promotes long life expectancy. Together they form an excellent sealant that can be used around window and door frames; for siding and trim work; caulking tubs and sink tops; thresholds and baseboards. CRL 321 can be tooled for approximately 30 minutes and can be painted over after two hours with oil or latex based paints.  
In order to help you better select the correct sealant, we have put together a Silicone and Sealant Selector Chart

Color:                        White
Contents of Cartridge: 10.1 fl oz (300 ml)

Minimum Order: 1 Cartridge
Case qty 30pcs (price shown per 1 cartridge)


Technical Data: Exceeds the requirements of ASTM C-834 Standard Specification for Latex Sealing Compounds.

Base Polymer: Siliconized Acrylic Caulk; Tooling Time, 30 minutes; Tack Free Time, 60 minutes; Cure Time, 7-14 days; Shore A Hardness, 25; Service Temperature, -5° to 170°F (-21° to 77°C).

CRL 800
Pecora AC-20
Dap Alex-Plus
OSI Polyseamseal Acrylic Caulk with Silicone, OSI® SA-167
Sonneborn Sonolac
Tremco 834.

Important Note:
Limitations: Should not be used in applications that will be immersed in water. Should not be exposed to water or rain for at least 24 hours. Always apply when temperatures are above 40°F (4°C). Protect from freezing until fully cured. Check cartridge label and Specification Data Sheet for additional limitations.

CRL 321 Clear Acrylic Caulk with Silicone goes on white, but cures to a clear, inconspicuous seal which allows matching dissimilar painted surfaces.

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