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POR-15 Tie-Coat Primer
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Tie-Coat Primer is a very tough and sandable,
non-moisture sensitive single-component polyurethane primer. It contains
hybrid polymeric resins which have excellent adhesion characteristics to
most painted surfaces, especially that of POR-15, because we have matched
and blended the isocyanate resin components of both coatings to make them
fully compatible. Tie-Coat Primer is highly resistant to penetrating topcoats
such as enamels, lacquers, and two-component finishes (-penetrating topcoats+
refers to topcoats with especially aggressive solvent bases which can penetrate
and ruin a partially cured base coat).
Tie-Coat Primer is not a reactive coating
(as is POR-15, which reacts to moisture), but its revolutionary adhesion
promotors make it an ideal interlocking prime coat between POR-15 and various
topcoats. It sands to a perfectly smooth finish. It may be used over well-seasoned
POR-15 coatings even if they are more than a year old, with no special
preparation other than cleaning the surface.
PRODUCT
CHARACTERISTICS
| Boiling Point: |
350-385°F / 177-196°C |
| Vapor Density: |
Heavier than air |
| Reactivity in water: |
none |
| Odor: |
Light aromatic |
| Viscosity: |
Range@77°F: 250-500 CPS |
| Specific Gravity (water = 1): |
1.32 |
| %Volatile by volume: |
21% |
| Evaporation rate (Ether=1): |
Solvent, 4.5 |
| Color: |
Bluish-Gray |
| Volatile organics: |
2.33 lbs/gal (270 gr/ltr) |
| Flash point: |
108°F / 42.2°C |
| Solubility in water: |
negligible |
| Carcinogens (or potential): |
none |
| Stability: |
Stable under normal conditions |
| Conditions to avoid: |
Sparks, open flame |
| Materials to avoid: |
Oxidizing Agents |
| Current TLV: |
ACGIH: 100 ppm TWA |
| Ceiling value OSHA PEL: |
500 |
SUPPLEMENTARY
INSTRUCTIONS
Surface Preparation: Surface to
be coated should be free of grease, oil, foreign substances. Use a water
soluble cleaner like POR-15 Marine Clean. Use of a scuff pad will create
the best surface for adhesion.
Thinning: May be thinned up to 5%
with POR-15 Solvent. Thinning is not usually required. Subsequent coats
may be applied at 12 hour intervals if desired. Stir Tie-Coat thoroughly
before using; do not shake as this will create air bubbles.
Pressure: Spray at approximately
35 lbs. Do not sand between coats of primer. Sand only after final coat
of primer has fully dried (24 hours).
Topcoating: Allow a minimum of 24
hours before applying any topcoat over Tie-Coat Primer. Failure to allow
enough dry time before applying topcoats may result in spidering or crinkling
of the finish.
Storage & Handling: Store in
tightly closed container and protect from moisture and foreign materials.
Ideal storage temperature range is 50 - 81° F (10 - 27° C).
Summary:
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Stir, do not shake, Tie-Coat Primer before
using.
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Do not sand between coats. Sand only after
final coat has dried thoroughly (24 hours).
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As with all solvent-based coatings, use an
organic vapor particulate respirator, NIOSH/MSHA approved, when spraying
or brushing. In closed areas, use an air-supplied respirator when spraying.
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