CRL 33SW White 33S Silicone Sealant

CRL 33SW White 33S Silicone Sealant

C.R. Laurence 33SW White 33S Silicone Sealant is a top-tier choice for professionals seeking reliable performance in a variety of sealing applications. This high-quality, one-component silicone sealant is designed to bond and seal non-porous materials, including glass, aluminum, and plastics, making it ideal for both interior and exterior projects. Its advanced formula includes special additives that resist mold and mildew, ensuring lasting durability in moisture-prone environments. Packaged in convenient plastic cartridges with screw-on nozzles, the 33S Silicone Sealant is easy to apply, and its wide operating temperature range of -80°F to 400°F (-62°C to 204°C) allows for versatility in various climates. With a tensile strength of 350 psi and tear strength of 25 ppi, this sealant excels in demanding applications, such as sealing curtain wall joints and skylights. Its 24-month shelf life ensures that you can rely on it when you need it most. Available in eight colors, including a mildew-resistant formula in clear, white, translucent white, and tan, the 33SW is perfect for both aesthetic and functional purposes. While it offers exceptional performance, it’s important to note that it is not suitable for structural glazing or submerged joints. For optimal results, ensure all surfaces are clean and properly prepared before application.

White 33S Silicone Sealant

• Our Best-Selling Silicone with Special Additives to Resist Mold and Mildew
• Plastic Cartridges with Screw-On Nozzles
• Available in Eight Colors
• 24 Month Shelf Life*

This is our most popular sealant! CRL 33S Silicone is a high quality sealant that delivers the performance you demand at a competitive price. It is a one component, room temperature curing, acetic cure, 100% silicone elastomer that does not require the addition of activators, stabilizers, or catalysts to achieve optimum performance.


Basic Uses - CRL 33S Silicone is especially designed for joining and sealing most non-porous building materials including a variety of structural materials: glass, aluminum, stainless steel, wood, and plastics. All surfaces must be properly cleaned and the sealant tooled for good adhesion. Cat. No. S1L2100 Primer may be required for these and other substrates as well.

It has a wide operating temperature range of -80° to 400°F (-62° to 204°C), and can be applied at outdoor temperatures as low as -35° to 140°F (-37° to 60°C). 33S exhibits strong physical properties: 350 psi Tensile Strength; 120 psi Lap Shear at 1/8" (3 mm) thickness and Tear Strength of 25 ppi. It will seal curtainwall joints, steel and aluminum windows, and skylights. Indoor uses include bathtubs, showers, and sanitary installations (mildew resistant clear, white, translucent white, and tan contain a fungicide for cured beads that are mildew resistant).

Limitations - It is not recommended for structural glazing or insulating glass glazing, concrete and stone expansion joints, horizontal decks, patios, driveway or terrace joints where abrasion is possible. Not recommended for use on concrete, marble, limestone, lead coated, copper & brass surfaces, submerged joints (swimming pools and aquariums), plazas, decks, pavements, etc. Not suitable for painting. Check cartridge label and Specification Data Sheet for additional limitations.

Comparable Sealants - Dow Corning®: 999-A; 786; 732; 700; Glazing Silicone; General Purpose; Commercial Grade 100%; Tub, Tile and Ceramic, HVAC/R.Dap: 100% Silicone.GE®: 1200 Construction, 1000 Contractors, 1700 Sanitary. Tremco®: Proglaze, Tremsil 200, TremPro 644. OSI: HM-270. Pecora: 860, 863. Sika®: SikaSil® GP. Sonneborn: OmniPlus.

Technical Data - Meets or Exceeds Federal Specifications:
TT-S-001543A (COM-NBS) Class A, for Silicone Building Sealants
TT-S-00230C (COM-NBS) Class A, for One-Component Building Sealants
ASTM C-920 for Elastomer Joint Sealants, Type S, Grade NS, Class 25, Use NT, G, A
CAN/CGSB 19.13-M87. CRL 33S Meets the Requirements of FDA Regulation Number 21 CFR 177.2600 for Use in Food-Related Applications, Such as Walk-in Freezers and Refrigerated Trucks. CRL 33S is Certified by NSF to Standard 51 - Plastic Materials and Components Used in Food Equipment. CRL 33S is a "UL Recognized Component." Meets California Air Resources Board 2003 Requirements for Volatile Organic Compound (VOC) Content. Qualifies for LEED® (Leadership in Energy and Environmental Design) Green Building Rating System Credit.

NOTE:This silicone is and will remain clear if properly stored in a cool dry place and away from direct sunlight. When uncured silicone is exposed to UV radiation (sunlight) it turns pinkish until it cures, it is the exposure to UV that causes the pink hue. Once cured, 24-48 hrs., the pink hue disappears completely


Product Warning:

Not recommended for structural glazing or insulating glass glazing, concrete and stone expansion joints, horizontal decks, patios, driveway or terrace joints where abrasion is possible. Not recommended for surfaces with special protective or cosmetic coatings such as mirrors, reflective glass, polyethylene or polypropylene surfaces. Not recommended for use on concrete, marble, limestone, lead coated, copper & brass surfaces, submerged joints (swimming pools), plazas, decks, pavements, etc. Remove all old sealant before applying new. Not suitable for painting. Check cartridge label and Specification Data Sheet for additional limitations.

Resources

• 33S Silicone Spec Data Sheet
• CRL Sealant Basic Uses and Limitations
• Glass Railing Installation Sealants Information
• LEED Statement
• NSF Sealant Certification
• Sealant Requirement Estimator Chart
• Silicone Sealant Limited Lifetime Warranty
• Silicone Sealant Safety Data Sheet