Coating
Protocol.
Paint application protocol for all GRAFT Mecha Pigments on high-performance polymer substrates. Adhesion promotion is mandatory — skip it and the paint will fail under kinetic stress.
Standard automotive sprays exhibit delamination and micro-fracturing when applied directly to porous high-spec 3D prints under kinetic stress. This protocol outlines the precise surface preparation and application methodology for GRAFT Mecha Pigments to ensure permanent adhesion, UV resistance, and impact durability.
Surface Decontamination
High-performance polymers inherently retain residual particles and microscopic oils from the manufacturing process. Submerge parts in an ultrasonic cleaner with a mild degreaser for 15 minutes. Wash with distilled water and allow 100% evaporation. Thermal dry at 40°C if necessary.
Adhesion Promotion — Critical
Apply a thin, uniform wet coat of GRAFT P-01 Adhesion Promoter. DO NOT BUILD UP. The promoter alters the surface tension of the polymer to accept the primer. Flash off for exactly 10 minutes at 20°C before proceeding.
Pigment Application
Spray GRAFT Mecha Pigments at 18–20 PSI. Apply one light tack coat, followed by two medium wet coats. Wait 5–8 minutes between coats until mathematically matte. The pigment is self-leveling and will sink into the micro-texture of the high-spec print, retaining the industrial finish.
WARNING // 48 HOUR CURE MANDATORY
Parts must cure for a minimum of 48 hours before assembly or kinematic testing. Prematurely snapping parts onto the host frame before full chemical off-gassing will result in permanent friction scars and adhesion failure at stress points.
