Duct Coating provides a protective finish for insulation on air conditioning ducts and cold water piping when applied in 2 coats with reinforcing fabric embedded between coats. When relative humidity exceeds 75% for continuous periods, or where the insulated piping or equipment contains chilled water, brine or refrigerant, additional vapor barrier protection is suggested. Duct Sealant is a fire-resistive, fibrated water based, indoor/outdoor vapour barrier sealant for low, medium and high-velocity heating and air conditioning ducts. It performs as a tough and flexible adhesive and sealant. Our main suppliers are Foster from USA and Airmaster from India.
Duct Coating 30-36
30-36 is a flexible adhesive and sealant, forming a durable seal against air leakage. It can be used where the humidity level had to be sustained at or above 90%.
Application consistency: Brush or spray
Average weight / U.S. Gallon (ASTM D1475): 10.4 lbs. (1.25 kg/l)
Average non-volatile (ASTM D2369): 40% by volume (51% by weight)
Coverage range: Subject to the type of surface being coated. Wet coverages shown below are for smooth non-porous surfaces. Porous or rough surfaces may require higher gallonage to attain the required dry thickness. 40 – 70 sq. ft. per gal. (1.0 – 1.7 m2 /l) per coat 0.040 in. – 0.023 in. wet film thickness (1.0 – 0.6 mm) per coat
Drying time 73ºF (23ºC) 50% RH: Set to Touch: 2 Hours Dry Through 15 Hours
Service temperature limits: Temperature at coated surface 0ºF to 180ºF (-18ºC to 82ºC)
Water vapor permeance (typical average): ASTM F1249: 0.5 to 1.3 perms (0.9 metric perms) at 31 mils dry film thickness (0.8 mm)
Wet flammability: No flash to boiling, 212ºF (100ºC)
Fungal resistance (ASTM D5590): Rating = 0
Surface burning characteristics (ASTM E84): Flame Spread: 10 Smoke Developed: 5 Tested at a coverage rate of 40 sq. ft. /gal. (1.0 m2 /l). Applied to 1/4 inch (6.4 mm) inorganic reinforced cement board. The flame spread may vary at different product thicknesses and/or when applied over other surfaces.
Limitations: Store and apply between 40ºF (4ºC) and 100ºF (38ºC), protect from freezing until dry. Always test foil and paper facings for acceptable adhesion before using
Application: It can be applied easily by brush, roller and airless spray (please contact your equipment supplier followed by product viscosity mention in data).It has excellent water, chemical, abrasion and U.V resistance.Recommended to be used on metal duct in outdoors and indoors thermal Insulation systems.
Can be use as stop coat of normal coating to protect from fungal.
Advantages: Good Adhesion * Water resistance * Non-toxic & non-flammable’ UV Resistance” Chemical Resistance Antifungal & Antibacterial * Suitable to Middle East climatic condition.
Duct Sealant 32-17
Fire retardant, aqua-based, vapor barrier sealant for low, medium and high pressure or high velocity- metal, fiberglass, and flexible heating and air conditioning air ducts, forming a durable seal against air leakage.
Colour: Light Grey
Application consistency: Brush, trowel, caulking gun or power extrusion
Average weight / U.S. gallon (ASTM D1475): 11.6 lbs. (1.35 kg/l)
Average non-volatile (ASTM D2369): 55% by volume (69% by weight)
Coverage range: Brush: 25 – 50 sq. ft. /gal. (0.6 – 1.2 m2 /l) 0.064 in. – 0.032 in. (1.6 mm – 0.8 mm) wet film thickness Caulking Gun: 125 linear ft. per 10.5 fluid oz. tube, 1/8 in. bead (38 m per 0.31-litre tube, 3.2 mm bead) 30 linear ft. per 10.5 fluid oz. tube, 1/4 in. bead (9 m per 0.31-litre tube, 6.4 mm bead)
Service temperature limits: 20ºF to 200ºF (-7ºC to 93ºC)
Drying time 73ºF (23ºC) 50% RH: Set to Touch: 1 hour dry through: 24 hours
Shore hardness (ASTM D2240): Type A: 80
Water vapour permeance (typical average): ASTM E96, PROCEDURE A: 0.45 perms (0.30 metric perms) at 35 mils (0.9 mm) dry thickness
Wet flammability: No flash to boiling, over 210ºF (99ºC)
Surface burning characteristics (ASTM E84): Flame Spread: 5 Smoke Developed: 0 Tested as applied in two 2 in. wide strips spaced 8 in. on centre at a coverage rate of 25 sq. ft./gal. Applied to 1/4 inch (6.4 mm) inorganic reinforced cement board. The flame spread may vary at different product thicknesses and/or when applied over other surfaces.
Application: It is also used as an adhesive to metal, aluminium, Ceramic, Concrete, mild steel, etc.
It does not contain Asbestos, Lead, Mercury or Mercury compounds. It can be applied using a wide variety of power extrusion equipment suitable for use with water-based sealant.
Advantages: Non-Flammable “Excellent adhesion & High strength” Highly resistance to extreme temperature changes and aging “Suitable to Middle East climatic condition” Highly resistance to mould & mildew” Highly Elastic Resistance to oil or grease” mildly resistance to diluted alkalis and acids.
Duct Glue 81-10
81-10 is inflammable, one-component adhesive based on synthetic modified rubber with special additives.
Application consistency: Spray, brush or roller.
Average weight / U.S. gallon (FSTM 3): 6.2 lbs. (0.74 kg/l)
Average non-volatile (FSTM 9A): 17-19% by volume (27-30% by weight)
Coverage range (FSTM 72): (Subject to the type of surface and nature of the material being bonded.) 200 to 400 sq. Ft. Per gallon (4.9 to 9.8 m2/l) 0.008 in. To 0.004 in. Wet film thickness (0.2 to 0.1 mm)
Bond time range (FSTM 66): 0 to 15 minutes
Service temperature limits (FSTM 70): (Temperature at coated surface) -20ºf to 200ºf (-29ºc to 93ºc)
Wet flammability (ASTM D 93): Flashpoint -7ºf (-22ºc)
Surface burning characteristics (ASTM 84): Flame spread: 10 smoke developed: 25 tested at a coverage rate of 200 sq. Ft. /gal. (4.9 m2/l). Applied to 1/4 inch (6.4 mm) inorganic reinforced cement board. The flame spread may vary at different product thicknesses and/or when applied over other surfaces.
Application: Ideal for use in application where fibrous glass wool or similar insulation are bonded to the interior or exterior of metal duct systems.It can be used for most porous & non-porous surface.It can be applied easily by brush, roller & pressure feeding equipment evenly on both surfaces.
Advantages: Economical “Excellent Cohesive & Bonding strength” “Water Resistance” Chemical Resistance. Good wet tack” Suitable to Middle East climatic condition.