Description
CRL M65W PermaWhite Polythane Construction Sealant – White Cartridge
C.R. Laurence M65W White PermaWhite Polythane Construction Sealant is a high-performance, medium modulus sealant designed for a variety of construction applications. This one-part, moisture-curing modified polyurethane sealant features an advanced non-yellowing formula and delivers a smooth finish that enhances aesthetic appeal. With its primerless adhesion capabilities on most common construction surfaces, M65W ensures a strong bond without the need for additional prep work. Ideal for sealing dynamically moving joints such as expansion and control joints, precast concrete panel joints, and perimeter caulking around windows and doors, this versatile sealant boasts tenacious adhesion to materials like glass, aluminum, steel, and many plastics. Its rapid curing time allows for paint applications in just two hours, making it a favorite among professionals. M65W is formulated with low VOCs and no isocyanates, reducing environmental impact while maintaining a low odor for comfort during application. It is compliant with various industry standards, including ASTM and USDA specifications, and qualifies for LEED® credits. With a ± 25% joint movement capability, this weather-resistant sealant is engineered to withstand moisture, shear, and deflection, ensuring long-lasting performance in diverse conditions.
White PermaWhite Polythane Construction Sealant – Cartridge
- Advanced, Non-Yellowing, One-Part Smooth Finish Formula
- Primerless Adhesion on Most Common Construction Surfaces
- Low Odor
- No Isocyanates and Low VOC’s
CRL M65W is a high performance, medium modulus, fast curing, paintable, one-component, moisture curing modified polyurethane sealant with advanced non-yellowing formula and a smooth finish appearance. Contains no isocyanates and low VOC. Low odor for interior or exterior applications. M65’s fast cure time allows painting in just two hours.
Basic Uses
CRL M65W is ideal for door and window frame perimeters. Specifically developed for sealing dynamically moving joints, such as expansion and control joints, precast concrete panel joints, curtainwall joints, perimeter caulking (masonry, windows, doors, skylights, panels), bedding of mullions, panels, and frames. It is compatible with insulating glass sealants when glazing units and applied as a toe or heel bead. Reduced fluid migration, or exudation, allows applications with new self-cleaning glass. M65W exhibits tenacious adhesion, which will not dissipate with time, to prepainted metals, plywood, glass, aluminum, steel, fiber cement, SMC, RIM, FRP, vinyl, and many plastics and composites. Capable of ± 25% joint movement in a well-designed joint. This unique weather resistant formulation possesses a balanced adhesive strength, medium modulus, and high recovery, making it ideal to withstand the following adverse conditions common to such installations: moisture, movement, shear, and deflection. Best of all, it is non-yellowing and non-staining.
Technical Data
Conforms to U.S. Federal Specification TT-S-00230C, Type II, Class A; ASTM C 920-98, Type S, Grade NS, Class 25, Use NT, M, A, G, and O; CAN/CGSB 19.13-M87; USDA Approved. 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.
Comparable Sealants
CRL:
M66 Polyurethane Sealant, M64 Polyurethane Sealant.
Tremco®:
Vulkem 921, Vulkem® 116, DyMonic®, Dymonic® FC, TremGlaze U1400, TremPro 626.
Sika®:
1A, 15LM.
Sonneborn:
NP1, Sonolastic 150.
Pecora:
Dynatrol 1-XL.
OSI:
PR-255.
Schnee Moorehead:
7100.
Bostik:
Chem-Calk 900.
DAP:
Side Winder.
Limitations
Not recommended for structural glazing, sealing horizontal decks, patios, driveway or terrace joints where abrasion is possible, food contact, potable water applications, sealing below the waterline in marine applications, or mirrors. Do not apply over damp or contaminated surfaces. Use with adequate ventilation. Not recommended for surfaces with special protective or cosmetic coatings without prior consultation of the manufacturer. Should not be applied to unpredictably absorptive surfaces such as marble, limestone or granite unless a standard of appearance has been agreed on as a result of testing for stain and/or discoloration. Testing prior to painting with oil-based paints is recommended. Check cartridge label and Specification Data Sheet for additional limitations.
Product Warning:
Limitations: Not recommended for structural glazing, sealing horizontal decks, patios, driveway or terrace joints where abrasion is possible, food contact, potable water applications, sealing below the waterline in marine applications, or mirrors. Do not apply over damp or contaminated surfaces. Use with adequate ventilation. Not recommended for surfaces with special protective or cosmetic coatings without prior consultation of the manufacturer. Should not be applied to unpredictably absorptive surfaces such as marble, limestone or granite unless a standard of appearance has been agreed on as a result of testing for stain and/or discoloration. Testing prior to painting with oil-based paints is recommended. Check cartridge label and Specification Data Sheet for additional limitations.
Most shipping weights are approximate and have not been verified. If the exact weight is needed in order to determine shipping costs, and shipping costs are required in order for you to complete your order, please request this prior to submitting your order by contacting CRL Customer Service. Product images shown are of the actual product or a close representation. Colors can vary depending on your computer’s video card and on how your monitor’s color is adjusted.
Attributes
Brand: CRL
Cartridge Contents: 10.1 oz. (300 ml)
Case Quantity: 30
Compliance and Restrictions: Warning Reproductive Harm – www.p65warnings.ca.gov
Finish/ Color:: White
Pallet Quantity: 48 Cases
Shelf Life: 12
Shipping Limitations: None
Resources
- CRL Sealant Basic Uses and Limitations
- LEED Statement
- Polythane Construction Sealant Safety Data Sheet
- Sealant Requirement Estimator Chart
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