One-Part Grainy Textured Finish Formula with
Primerless Adhesion on Most Common Construction Surfaces
Excellent Sealant for Interior or Exterior Use
Durable and Flexible Performance in Moving Joints
CRL M66 Polyurethane is a one-part, moisture curing, gun grade
polyurethane sealant. It does not require a primer on most common construction
surfaces. CRL M66 is durable, flexible, and offers excellent performance in
moving joints. CRL M66 is an excellent general purpose sealant designed for use
in precast, masonry, window frame perimeters, and similar types of construction
joints. M66 is compatible with I.G. sealants when glazing units and applied as a
toe or heel bead. It is suitable for continual immersion in water with the
appropriate primer. CRL M66 is designed for exterior and interior use. It is
also suitable for varied manufacturing uses, such as the production of travel
trailers and mobile homes, and in the assembly of galvanized air conditioning
duct work. Paintable after full cure, minimum 72 hours.
Color: Off-White
Contents of Cartridge: 10.1 fl oz (300 ml)
Shelf Life: 12 months
Case Qty: 30
Minimum Order: 1 Each
Additional Product Information:
Technical Data: Conforms to U.S. Federal Specification TT-S-00230C, Type
II, Class A; ASTM C920-98, Type S, Grade NS, Class 25, Use NT, M, T, A, and O.
CAN/CGSB 19, 13-M87, Type MCG-225-A-N with QPL #81050. USDA Approved. Meets
California Air Resources Board 2003 requirements for Volatile Organic Compound
(VOC) content. Qualifies for LEED (Leadership in Energy and Environmental
Design) credit.
Comparable Sealants:
CRL M64 Polyurethane Sealant
Tremco® Vulkem 116, Tremco® Vulkem 911, Tremco® Vulkem 921, Tremco® Vulkem 931,
Tremco® DyMonic Sealants
Sika® 1A, Sika® 15LM Sealants
Sonneborn® NP1, Sonneborn® Sonolastic 150 Sealants
Pecora® Dynatrol 1 Sealant
OSI® PR-255 Sealant
Schnee Moorehead 7100 Sealant
Somaca® One-Part Polyurethane Sealant
Bostik Chem-Calk 900.
Packaging: 30 cartridges per case; 1440 cartridges per pallet. Press-in hand
holes in each case for easier lifting. "WHMIS" Safety Label on cartridges and
cases.