Highest leafing aluminum concentration for superior reflectivity and service life.

Extends the life of asphalt and modified bitumen membranes.

ASTM D2824 Type III
UL Class A Rated
TT-C-498C
ASTM D3805
ASTM D962 Type II
Solar Reflectance: 0.63 Initial / 0.55 3-Yr. Aged
Thermal Emittance: 0.46 Initial / 0.53 3-Yr. Aged
SRI: 62 Initial / 52 3-Yr. Aged

VOC Content: 450 g/L MAX

98 Fibered Aluminum Roof Coating helps reduce indoor building temperatures. It’s ideal for use on modified bitumen membranes, metal corrugated roof decks, steep asphalt roofs that have aged for 90 days, or any KARNAK emulsion roof coating that has been allowed to cure for 3-5 days.

Weight per Gallon: 8.68 lbs.
Solids by Weight: 58% Nominal
Solids by Volume: 46% Nominal
Color: Silver
Application Temp.: 50°F to 120°F
Service Temp(Cured Film): 15°F to 180°F

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SURFACE PREPARATION:
Prepare all surfaces by sweeping clean of dust, dirt, loose rust, oil and loose particles. Recommended application temperature is 50°F to 120°F. Repair all cracks and blisters by spreading 19 Ultra Rubberized Flashing Cement over the damaged area, then embed KARNAK Asphalt Cotton, Fiberglass, Poly-Mat or Resat-Mat reinforcement and apply another coat of 19Ultra Rubberized Flashing Cement over the entire patch. New asphalt roof surfaces should weather a minimum of 90 days before being coated over with 98 Fibered Aluminum Roof Coating. However, 98 Fibered Aluminum Roof Coating can be coated on roofs 3 to 5 days after KARNAK asphalt emulsion roof coatings have been applied. Badly weathered or alligatored asphalt surfaces should be primed with 100 Non-Fibered Emulsion Primer or 220 Fibered Emulsion Roof Coating prior to coating with 98 Fibered Aluminum Roof Coating. Allow emulsion primer/coating to cure a minimum of 3-5 days before application of aluminum roof coating.
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APPLICATION:
98 Fibered Aluminum Roof Coating should be spread uniformly over the roof surface. Care should be taken not to overwork the coating during application. This could have a damaging effect on the leafing of the aluminum. Pour the correct amount of aluminum roof coating to cover a given area and work it in one direction. Be sure to mechanically mix the aluminum roof coating thoroughly before using. 98 Fibered Aluminum Roof Coating can be applied with a soft roof brush, roller or spray. Discoloration will occur in areas where 19 Ultra Rubberized Flashing Cement is not allowed to dry a minimum of 60 days. After 60 days, recommended application temperatures are 50˚F and rising.

COVERAGE RATE:
Apply at 1 to 1.5 gallons per 100 sq. ft. (16-24 wet mils). DO NOT THIN.

Do not use near open flame. Avoid breathing solvent fumes and prolonged contact with skin. Do not take internally. If swallowed, do not induce vomiting. Call a physician immediately. Keep out of reach of children. Keep container covered when not in use. Do not thin. Do not apply when rain is imminent. Dispose of in an environmentally safe manner. Cover air intakes during application and while drying.

CARE OF TOOLS:
Equipment may be thoroughly cleaned after use with mineral spirits, taking the necessary precautions when handling combustible materials.

Note: Coating Modified Bitumen Membranes with Aluminum Coatings:
KARNAK recommends coating torch-applied modified bitumen membranes as soon as possible after the membrane is installed. KARNAK’s experience, laboratory and field tests, as well as NRCA, RCMA and ARMA reports, indicate that aluminum coating will reduce the combined effects of ultraviolet rays, heat and moisture, which, especially on APP modified bitumens, enhance exudation that can cause discoloring and delamination of any surface coating.
COLD-PROCESS SYSTEMS AND COATINGS, EITHER EMULSION OR SOLVENT BASED, SHOULD ONLY BE INSTALLED ON DECKS WITH POSITIVE DRAINAGE. PER NRCA, (NATIONAL ROOFING CONTRACTORS ASSOCIATION) “THE CRITERIA FOR JUDGING PROPER SLOPE FOR DRAINAGE IS THAT THERE BE NO EVIDENCE OF STANDING WATER ON THE DECK 48 HOURS AFTER IT STOPS RAINING.”