UltraTooling gelcoat is specially formulated for moldmaking.

The plug to be duplicated must first be waxed to permit positive release. UltraTooling gelcoat is then applied using air atomizing spray equipment and laminated using a tooling resin or equivalent.

The resulting surface offers a range of advantages facilitating high-quality molding:

• High gloss
• Excellent abrasion resistance
• Excellent solvent resistance
• Superior hardness
• Exceptional craze resistance
• Minimum distortion

Applications

Marine, sanitaryware, recreational vehicles, and other open-mold, hand, lay-up applications.

Viscosity

Brookfield Model LVF, Spindle #4, @23ºC.

1. 6 rpm: 11,000 cps to 14,000 cps
2. Thix @6/60: 5.0 to 6.5

Catalyzation

9 percent active oxygen MEKP @23ºC.

1. Do not catalyze with less than 1 percent, or more than 2 percent catalyst (by total weight of gelcoat).

Cure data

1. Gel time: 8-15 min. with 1.5 percent - 9 percent active oxygen MEKP @23ºC.
2. Volumetric shrinkage: under 10 percent.
3. Sag resistance: 25-30 mils.

Cured gelcoat

1. Barcol Hardness 1/8" Casting Model 934-1, after 48 hrs. (45 min.).

Since tooling gelcoat contains solvent, all solvent must flash-off before Barcol test. Contact supplier for specific test criteria.

CAUTION

• Do not use varnish as a sealer or finish coating when preparing a plug for moldmaking. Even if the varnish is well waxed and coated with a parting film, sufficient styrene monomer from the gelcoat can pass through the barriers to soften the varnish which will act as an adhesive between the mold and the plug.
• A high heat distortion tooling resin or equivalent should be applied at the coverage rate of 80 sq. ft./gal. Precisely follow the resin manufacturer's recommended laminating procedures.
• Please note 90-day shelf life.

Application guidelines

1. Agitate well before using.
2. The gel time of this product may change with aging. Check it to your specifications. If it is not within specifications, or is over 90 days old, contact your Ferro sales representative.
3. Do not use less than 1 percent or more than 2 percent of MEKP catalyst.
4. Use only clean and properly adjusted spray equipment.
5. Prepare a ¼" thick casting with sprayed material at the time the gelcoat is sprayed into the mold. The Barcol Hardness of this casting should reach 40 within two days. Retain this casting, identified as to mold and date.
6. Spray catalyzed gelcoat on two small (approximately 2 ft. x 2 ft.) test panels at the same time that the tooling gelcoat is sprayed into the mold. Carefully use the same spray procedures as used on the mold. When the test panels have gelled, strip one and inspect it for porosity before proceeding further with the construction of the mold. Laminate the second panel using the same procedure used on the production mold. Retain this panel for possible future evaluation, identified as to mold and date.