Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Dow DOWSIL PR-1205 Prime Coat

Dow DOWSIL PR-1205 Prime Coat is a high-performance silicone-based primer from Dow’s DOWSIL series, engineered to enhance adhesion between challenging substrates and silicone sealants or coatings. It delivers rapid drying, excellent compatibility, and robust bond durability across glass, metal, and plastics—ideal for automotive, construction, and industrial assembly applications.
  • dow dowsil pr 1205 prime coat_6db8f2ff
  • dow dowsil pr 1205 prime coat_6db8f2ff

Features Of Dow DOWSIL PR-1205 Prime Coat

  1. Enhances adhesion between silicone sealants and challenging substrates including anodized aluminum, powder-coated metals, and low-surface-energy plastics.

  2. Fast-drying, solvent-based primer enabling rapid processing and reduced line downtime in automated assembly operations.

  3. Provides excellent thermal and UV stability, supporting long-term performance in exterior architectural and transportation applications.

  4. Formulated for consistent film formation and uniform coverage with minimal overspray or residue.

  5. Compatible with Dow SILICONES RTV and HTV silicone elastomers, ensuring reliable interfacial bonding without compromising cure kinetics.

Typical Applications Of Dow DOWSIL PR-1205 Prime Coat

  1. Automotive lighting assemblies requiring durable bond integrity between polycarbonate lenses and silicone gaskets.

  2. Architectural curtain wall systems where silicone sealants interface with coated metal frames and composite panels.

  3. Electronics enclosures sealing sensitive components against moisture and environmental contaminants.

  4. Industrial equipment housings exposed to thermal cycling and vibration stress.

  5. Aerospace interior trim bonding where lightweight substrates demand high-strength, low-weight adhesive interfaces.

Specifications Of Dow DOWSIL PR-1205 Prime Coat

Chemical TypeSolvent-based silane-modified primer
Product FormLiquid, ready-to-use
AppearanceClear to slightly hazy, colorless liquid
Primary ApplicationsPrimer for silicone elastomers on metals, plastics, and composites
Key FeaturesAdhesion promotion, fast drying, substrate versatility
BenefitsImproved bond durability, process efficiency, compatibility with Dow silicones
VOC Content (typical)~420 g/L (based on EPA Method 24)
Recommended Application MethodSpray, brush, or roll coating; air-dry 5–15 minutes prior to silicone application


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