Addivion RA 770

Addivion RA 770 is a semi-permanent, non-silicone mold release agent based on fluoropolymer technology, formulated for composite manufacturing and industrial molding operations. Applied as a thin wipe-on coating, Addivion RA 770 forms a durable, dry release film on mold surfaces that enables multiple part releases per application cycle without silicone transfer or mold contamination. Addivion RA 770 is widely used in fiberglass reinforced plastics, advanced composite manufacturing, aerospace tooling, automotive components, wind energy blade production, and marine composite fabrication.

Addivion RA 770 Overview

Addivion RA 770 is a solvent-carried fluoropolymer mold release agent designed to replace older chromate-based systems in demanding composite molding environments. The product is applied by wiping onto a clean, bare mold surface with a lint-free cloth, allowing the solvent carrier to evaporate and deposit a thin, uniform fluoropolymer film. This film provides a low-energy surface that prevents adhesion between the cured composite part and the mold tool. Multiple sealing coats are typically applied during initial mold preparation to build up an effective release layer; subsequent maintenance coats are applied between production cycles to restore release performance. Addivion RA 770 is compatible with a broad range of thermoset resin systems including epoxy, unsaturated polyester, vinyl ester, phenolic, and bismaleimide composites, and can be used on aluminum, steel, and composite tool surfaces.

Key Features

• Semi-Permanent Release Film: Addivion RA 770 forms a durable fluoropolymer release layer that persists through multiple molding cycles. After an initial preparation sequence of sealing coats, a single maintenance application can sustain release performance across several consecutive part pulls. This multi-release capability reduces production downtime and lowers the frequency of mold preparation interventions compared to sacrificial wax-based release systems.
• Non-Silicone Formulation: The product contains no silicone compounds, eliminating the risk of silicone transfer to part surfaces. Silicone contamination is a known cause of adhesion failure in subsequent bonding, painting, and coating operations. Using a silicone-free release agent such as Addivion RA 770 supports downstream surface treatment compatibility and reduces the need for solvent degreasing steps between demolding and bonding.
• Non-Chromate Chemistry: Addivion RA 770 is formulated without hexavalent chromium compounds, providing a safer working environment compared to legacy chromate-based mold release systems. The non-chromate formulation addresses regulatory restrictions on chromate use in many manufacturing environments while maintaining effective release performance on metallic and composite tool surfaces.
• Broad Resin Compatibility: The product is suitable for use with a wide range of thermoset composite systems, including epoxy, unsaturated polyester, vinyl ester, phenolic, and bismaleimide resins. It is applicable to both ambient-temperature cure and elevated-temperature cure processes, making it suitable for autoclave, oven-cure, resin transfer molding, hand layup, and filament winding operations.
• Dry, Non-Marking Film: After solvent evaporation, Addivion RA 770 leaves a thin, dry, transparent film that does not cause surface marking or print-through on composite parts. The dry film is resistant to displacement during resin infusion and layup operations, supporting surface quality and dimensional consistency in the molded part.

Typical Applications

Addivion RA 770 is used in composite molding operations where a reliable, residue-free mold release is required across multiple production cycles. In fiberglass reinforced plastic fabrication, the product enables clean part release from gel-coated and non-gel-coated mold surfaces without the risk of contamination from wax or silicone residues. In epoxy composite layup and autoclave processing, Addivion RA 770 provides stable release performance at elevated cure temperatures, supporting part dimensional accuracy and surface quality. Wind energy blade manufacturers use fluoropolymer mold release agents to achieve consistent release over extended production runs on large-format mold tools, reducing preparation time between cycles and supporting production efficiency targets.

Addivion RA 770 is also applicable to resin transfer molding (RTM) and vacuum infusion processes where the release agent must remain stable during resin injection and resist displacement by resin flow under vacuum pressure. Automotive composite component manufacturers use the product on matched-die tools and female mold assemblies for exterior body panels, structural brackets, and underbody components. In marine composite fabrication, mold release agents are applied to hull molds, deck molds, and small watercraft tooling to enable clean demolding of parts built in vinyl ester and polyester resin systems. Aerospace tooling applications include carbon fiber reinforced polymer (CFRP) part fabrication on both metallic and composite mandrel tools, where contamination-free release is critical for subsequent bonding and surface treatment steps.

Technical Specifications

• Chemical Type: Fluoropolymer in heptane solvent carrier
• Appearance: Clear to slightly hazy liquid — To be confirmed based on the final specification sheet.
• Solvent Carrier: Heptane (aliphatic hydrocarbon)
• Flash Point: Approximately -4°C (heptane reference; To be confirmed based on the final specification sheet.)
• Active Release Component: Fluoropolymer (type and concentration To be confirmed based on the final specification sheet.)
• Density at 20°C: To be confirmed based on the final specification sheet.
• Viscosity at 20°C: To be confirmed based on the final specification sheet.
• VOC Content: To be confirmed based on the final specification sheet.
• Silicone Content: None
• Chromate Content: None

Storage Recommendations

• Recommended maximum storage temperature: To be confirmed based on the final specification sheet.
• Store in a cool, dry, well-ventilated area away from heat sources, open flames, and direct sunlight.
• Keep containers tightly sealed when not in use to prevent solvent evaporation and moisture ingress.
• The heptane solvent carrier is highly flammable. Storage must comply with applicable flammable liquid storage regulations. Ignition sources must be eliminated in the storage area.
• Shelf life: To be confirmed based on the final specification sheet. Store containers upright and avoid prolonged exposure to temperature extremes.

Packaging & Transport

• Standard Packaging: To be confirmed based on the final specification sheet.
• Net Weight: To be confirmed based on the final specification sheet.
• UN Number: To be confirmed based on the final specification sheet.
• Transport Class: The product is transported as a flammable liquid due to the heptane solvent carrier. Specific classification and packing group are To be confirmed based on the final specification sheet.
• Ensure packaging is compliant with local regulations for transport of flammable solvents. Containers must be sealed and labeled in accordance with applicable GHS or regional hazardous materials transport requirements.

Addivion RA 770: Safety & Handling

Addivion RA 770 should be handled in accordance with applicable safety procedures for solvent-based chemical products. The heptane solvent carrier is classified as a highly flammable liquid with a flash point of approximately -4°C. All ignition sources — including open flames, sparks, hot surfaces, and static discharge — must be eliminated in areas where Addivion RA 770 is applied, stored, or transferred. Ventilation must be adequate to prevent the accumulation of solvent vapors above applicable occupational exposure limits. Users should wear appropriate personal protective equipment including solvent-resistant gloves, eye protection, and respiratory protection as specified in the Safety Data Sheet. The product should not be used in enclosed spaces without mechanical ventilation.

Addivion RA 770 must be kept away from oxidizing materials and strong acids during storage and handling. Containers should be grounded and bonded during transfer operations to prevent static charge accumulation. In case of skin or eye contact, rinse with water for an extended period and seek medical attention if irritation persists. Spills should be contained and absorbed using non-combustible absorbent materials; waste must be disposed of in accordance with local regulations for flammable solvent waste. Safety Data Sheet and destination-compliant labeling information are available upon request. For related Innovexar specialty additives, see also Addivion SURF 55 and Addivion DEF 06.