VFI-6031 75 A Polyurea Hybrid Spray Coating

Thickness Requirements

VFI typically recommends spraying between 40 and 80 mils for the best coverage. More coats can be applied for improved impact resistance. Apply them within an hour after the initial coating for ensured adhesion.

Equipment

VFI-6031 requires a low-pressure, plural component spray applicator like the VFI-7500 Qwik Spray Gun, which can hold 750 mL dual cartridges. To run the equipment, an air compressor that can provide dry air and a minimum of 100 psi at 10 CFM of constant pressure is required.

Surface Preparation

Clean all surfaces of contaminants such as oils, dirt, or debris for ensured adhesion. If used for molding, the applied surface must be sealed with a release agent, especially if it is porous and you plan on demolding.

Some substrates may require sanding, so an adhesion test should be performed before coating. When applying over foam, allow the foam to age for at least 30 days so any gas can escape.

Mixing

Bring the material to a minimum temperature of 65°F before use. Do not heat the material in a microwave. As a cartridge-based system, VFI-6031 does not require mixing, except if the material is visibly separated. If separation is visible, shake the cartridge until uniform.

Application Guidelines

The surface and ambient temperature should be between 40°F-100°F during use. Cure speed will increase above 72°F. Keep the cartridge vertical with the label facing up when loading it into the gun.

Once you start spraying, you cannot stop until the cartridge is empty without switching tips. Plan your spray pattern for even distribution. Spray onto a disposable surface to ensure the material is adequately mixed before spraying onto the application surface. Once the cartridge is almost empty, spray onto a disposable surface again to keep off-ratio material from getting onto the application surface.

Projects can be put into service after 48 hours at room temperature, depending on application thickness. Full cure occurs after 7 days.

Cleanup

Disconnect the static mix tip by pressing the push-to-connect fitting on the air supply hose. Remove the cartridge from the applicator frame and throw it away. If there is residue on the spray gun, you can use xylene or MEK to wipe it off before it fully sets. Never soak the gun in a cleaning solvent.

Storage/Shelf Life

The material shelf life is 6 months from the date of manufacture. Store in a clean, dry, temperature-controlled space between 60°F-90°F.

Precautions

VFI-6031 is not UV color-stable and has no long-term UV testing. This product contains isocyanate, which may cause skin irritation, and inhalation can be toxic. Avoid prolonged breathing of vapors and repeated skin contact. Use a supplied air respirator or respirator with forced air ventilation in a chemically approved spray booth. Do not thin or add foreign material to the product. See the Safety Data Sheet for all safety information.