Eternabond - OPS1-C EternaPrime , 12.2 oz. Spray

EternaBond EternaPrime is used to condition surfaces that are oxidized, dusty, or cannot be fully cleaned, or when installation temperatures drop below 40 °F. It helps coalesce loose particles into a solid surface suitable for tape adhesion and is VOC-exempt in its brush-on version. (based on Big Rock Supply description)

Key features:

• Prepares dirty, oxidized or dusty surfaces for tape adhesion
• Enables installation of EternaBond tapes at temperatures down to approximately -20 °F (with proper prep)
• VOC-exempt formulation (brush-on version)
• Solvent-based blend of elastomers and resins in a VOC-exempt solvent
• Available in convenient aerosol spray and brush-on formats

• Product: EternaPrime Surface Conditioner / Adhesive Enhancer 
• Manufacturer: H.B. Fuller Company 
• Can size: 12.2 oz spray (also available in quart, gallon sizes) 
• Application temperature range: -20 °F to 205 °F 
• Film thickness when wet: approximately 4 mils 
• Coverage: 300+ sq ft per gallon
• Standard case quantity: 12 cans per case for 12.2 oz spray size 
• Viscosity: 135-152 cps 
• Flash point: 110 °F 
• Weight: 10 lbs per gallon (bulk data) 
• Storage: Store in original container away from open flame, heat, strong oxidizers.

* This item is hazmat *

• Clean the surface to be treated by removing heavy accumulations of loose rust, scale, dust, talc, and dirt.
• Remove oil, grease, or other contaminants with a suitable solvent cleaner.
• If ambient temperature is below 40 °F or surface is porous/dusty, apply EternaPrime with a roller, brush, or spray as appropriate.
• Allow the primer film to set (typically ~15 minutes at 60 °F) before applying EternaBond tape. 
• Proceed to apply EternaBond tape following the tape manufacturer’s instructions, ensuring the conditioned surface is fully dry and prepared.

Q: On what kind of surfaces is EternaPrime required?
A: EternaPrime is recommended when surfaces to be bonded are dirty, oxidized, dusty (e.g., tar and gravel roof) or when installation temperature is below 40 °F.

Q: Can EternaPrime be used on PVC roof membranes?
A: No. The manufacturer advises not to use EternaPrime on PVC roofs because reactivation of some plasticizers may occur.

Q: What formats is EternaPrime available in?
A: EternaPrime is available as an aerosol spray (12.2 oz in this listing) and in brush-on versions (quart, gallon sizes).

Q: Does using EternaPrime reduce cleanup for tape application?
A: Yes. The product helps coalesce loose particles and reduces required surface cleanup when working on oxidized or difficult substrates.