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Momentive Primers

SS4004P, SS4044P and SS4179 primers are formulated for use with Momentive one-component silicone rubber adhesive sealants to promote adhesion to difficult-to-bond substrates. All primers are one-component products requiring no mixing and are supplied ready-to-use as easily pourable solvent solutions.

SS4004P and SS4044P primers help promote adhesion to metals such as stainless steel, brass, and galvanized metals, porous materials, unglazed ceramics and wood. SS4004P primer is bright pink, providing easy visual determination of uniform coating. Translucent SS4044P primer is identical to SS4004P primer, but is designed for applications where discoloration of the substrate is undesirable.

SS4179 primer facilitates the adhesion of GE Silicones sealant to challenging plastic substrates like acrylics, ABS, cellulosics (cellulose acetate), high-impact styrene, Lexan® (polycarbonates), PPO® (polyphenylene oxide resins), polysulfones, polyesters, rigid PVC, and Noryl® (thermoplastic resins).

PropertySS4004PSS4044PSS4179SS4120SS4155
ColourPinkClearClearClearBlue
Specific Gravity0.850.850.980.820.82
Solids Content, %15156310
SolventsAcetone, IPA, Toluene, n-ButanolAcetone, IPA, Toluene, n-ButanolEthyl Acetate, Toluene, MethanolEthanol, MethanolMineral Spirits
Flash Point10°F10°F27°F31°F98°F
Dry Time (minutes)6060156060
Used with RTV1 & 2 Part, Room Temp Cure1 & 2 Part, Room Temp Cure1 Part, Room Temp Cure1 & 2 Part Heat Cure1 & 2 Part Room Temp or Heat Cure
NotesGeneral purpose, dye used for visual aid upon coatingGeneral purpose, FDA compliantDesign for plastic primingGeneral purpose, FDA compliantGeneral purpose, 40+% RH required, dye used for visual aid upon coating
FastFax CDS # (dial 800-818-7329)15321532153218731873