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.