Robson’s Brushes (Throw-away chip brushes)
  • 1", 2", 3", 4", and 7" wide chip brushes for duct sealant, glue, mastic, grease, and lagging

  • smooth wood handle

  • natural bristle

  • 7" brush is specially designed for applying canvas and lagging adhesive

Flamex FR Canvas (Fire Rated, 6 ounce)
  • fire rated, 6 ounce fire retardant canvas jacket for covering mechanical insulation indoors

  • Flamex is the only 25/50 mechanical insulation canvas jacket that’s easy to tear both directions with no starting cut and no bunching

  • plain weave cotton, no dyes

  • fabric is 52 ½" wide, packaged in rolls

  • 25/50 fire rated at our factory with non-toxic fire retardant

Robson’s ET Canvas (Not Fire Rated, 6 Ounce Canvas)
  • treated with proprietary non-toxic treatment to make it easy to tear, but not fire resistant

  • "plain weave" cotton canvas jacket for mechanical insulation, 6 ounces per square yard, not dyed, for covering mechanical insulation indoors

  • easy to tear in both directions without a starting cut

  • canvas is 52" wide, packaged in rolls

  • no bunching and less loose threads than any other non fire rated canvas

Fitting Cotton (Not Fire Rated)
  • plain weave cotton, 3 ounces per square yard, not dyed: for covering insulated pipe fittings indoors

  • the only fitting cotton that’s easy to tear in both directions with no starting cut

  • faster to fabricate because there’s no need to use scissors

  • less bunching and less loose threads than any other fitting cotton, stretch and fit without wrinkles

Data Sheets
Robson's Duct Seal - WB (Indoor/Outdoor Duct Sealant - Water Base)
  • HVAC duct and plenum sealant

    • low odour, grey colour, elastomeric, fibre reinforced, high and low velocity

    • for indoor and outdoor use

    • non-sagging, non-cracking, UV resistant, paintable

    • meets SMACNA standards

    • freeze/thaw stable

    • available in 1 gallon pails

Data Sheets
No Sweat-FX (Anti-Condensation Coating - Water Base)
  • anti-condensation paint that prevents sweating on cold and multi-temperature surfaces including metal, concrete, and wood, ideal for metal buildings, HVAC ducts, cold pipes and fittings, ship hulls, and structural steel

  • white colour, can be tinted like latex paint, apply with brush, roller, or sprayer

  • not freeze/thaw stable

  • available in 1 gallon and 5 gallon pails

White Lag & Black Lag, Lagging Adhesives (Water Base)
  • Lagging adhesives for fabrics, indoor finish for FSK foil jackets, and edge sealants for HVAC duct liner

    • lower odour and easier to clean-up than other lagging adhesives

    • thicker than other lagging

    • mixing is not required

    • freeze/thaw stable

    • hundreds of colours available

  • White Lag is ultra white in colour, brighter and whiter than any other lagging so it matches PVC fittings

    • available in 1 gallon, 10.75 litre, and 5 gallon pails

  • Black Lag is flat black in colour, used in exposed black ceiling spaces such as theatres and museums

    • available in 1 gallon and 5 gallon pails

White Lag Data Sheets
Black Lag Data Sheets
Robson’s RT-80 (Outdoor Duct Sealant - Solvent Base)
  • HVAC duct and plenum sealant, low odour, bright aluminum colour, elastomeric, fibre reinforced, high and low velocity

  • micro-aluminum particles float to the surface and form a permanent real aluminum jacket over the duct sealant that prevents cracking due to UV rays from the sun (RT-80 is the only duct sealant with this feature)

  • for outdoor use, non-sagging, non-cracking, UV-proof, remains pliable when frozen, meets SMACNA standards, qualifies for LEED points

  • freeze/thaw stable, apply outdoors in freezing weather, paintable

  • available in 1 gallon pails

Data Sheets
Robson’s Foam (For Sculpting, Art, and Design - Water Based)
  • white, ultra-light weight formable foam for making visual effects, movie and stage props, 3-D objects, themed landscapes, models, animatronics, miniatures, art, and faux decorating

  • can be tinted, carved, cut, drilled, nailed, screwed, sanded, painted, molded, and joined to itself or any other materials including foams, wood, metals, plaster, clay, plastic, and glass

  • embed wires, pipes, LED lights, hinges, and other objects into the foam when wet

  • apply unlimited thickness in one application without slumping, deforming, or falling off

  • not freeze/thaw stable

  • available in 1 gallon and 5 gallon pails

Data Sheets
Robson’s Liner Coat (Anti-Erosion Coating for Acoustic Duct Insulation - Water Base)
  • black, durable, washable neoprene coating for new or existing acoustic duct insulation to prevent fiber erosion

  • restores damaged duct liner facing to like new condition

  • non-toxic, water based, low odour, dries fast, won’t clog spray equipment, freeze/thaw stable

  • installed cost is 75% to 95% less than replacing damaged acoustic duct insulation

  • available in 1 gallon and 5 gallon pails

Robson’s PVC Glue (Glue for PVC Jacket Laps - Solvent Base)
  • solvent based glue for gluing down laps on PVC jackets and fittings covers used to cover exposed pipe insulation

  • makes PVC jackets 100% water and vapour proof

  • dries clear, non-sagging, meets LEED VOC requirements

  • 250ml can is complete with in-can applicator brush for applying the glue

  • 500ml clear plastic squeeze bottle has a tapered nozzle that can be re-sealed after snipping the end off

  • freeze/thaw stable

  • available in 250ml can with in-can brush, and 500ml plastic squeeze bottle with tapered applicator nozzle

Data Sheets
RT-10 Mastic (Insulation Coating - Water Base)
  • white colour, finishes and protects pipe insulation bevels and end caps

    • use instead of using canvas, PVC, or metal

    • costs less than using PVC, canvas, or metal for bevels and end caps

  • instant and permanent adhesive for making pipe insulation fittings such as elbows and tees

  • coats and protects insulated pipe fittings, insulated ducts, vessels, and tank roofs, also used for making and water-proofing canoes

    • breather mastic, durable, fast setting, bridges cracks, flexible and elastomeric - for all fiber and foam insulation

    • indoor and outdoor

    • freeze/thaw stable

    • available in 1 gallon pails

Data Sheets
Robson’s RT-11 (Extreme Duty Anti-Erosion Coating for Acoustic Duct Insulation - Water Base)
  • grey colour, extreme duty, neoprene coating for acoustic duct insulation facing, edges, and seams including walk-in plenum floor insulation

  • elastomeric and extra durable, apply with brush, trowel, or putty knife

  • creates a flexible acoustical facing that is similar to perforated metal in the ability to prevent insulation fiber erosion

  • also use to join acoustic duct insulation edges together to create a permanent bond stronger than the actual insulation, freeze/thaw stable

  • available in 1 gallon and 5 gallon pails

Data Sheets
Robson’s RT-14 (Mastic - Solvent Base)
  • black, trowel grade modified asphalt vapor barrier mastic, fibrated, .018 perms

  • weather-proof vapour barrier mastic for protecting outdoor insulation on hot or cold pipes, vessels, ducts, and tank roofs

  • also used for water-proofing underground HVAC ducts and underground pipe insulation

  • also used as vapour barrier bed coating for cavity wall insulation

  • freeze/thaw stable

  • available in 1 gallon and 5 gallon pails

Data Sheets
Robson’s RT-38, Elastomeric Paint To Protect Insulation From Weather, Chemicals, and Impact (Water Base)
  • finishes and protects all flexible and rigid foam insulations, and all fibre insulations with a factory jacket

    • paint-like coating, white colour that can be tinted, fast drying, non-toxic, low VOC’s, apply with brush, roller, or sprayer

    • water resistant, UV resistant, impact resistant, stays flexible and elastomeric at low temperatures

    • use as a weather and chemical resistant lagging adhesive for fabric jackets installed outdoors or in wash-down areas

  • not freeze/thaw stable

  • available in 1 gallon and 5 gallon pails

Data Sheets
ThermaLite (Water Based Paint-On Insulation)
  • Insulation paint coating that thermally insulates hot and cold surfaces

    • R-15 per inch thickness, 3 lb/gal when wet

    • for small pipe fittings and vessel attachments, or large surfaces like walls

    • apply by trowel, form by hand, or apply with brush or spreader

    • not freeze/thaw stable, paintable

    • available in 1 gallon and 5 gallon pails

Ticki-Tuff, Duct Liner Adhesive (Water Base)
  • HVAC acoustic duct liner adhesive, black colour, easy clean-up, very mild odour makes it ideal for fabrication shop use

    • insulation can be re-positioned before adhesive is dry

    • freeze/thaw stable

  • Brush Grade clings to brush to reduce drips and clean-up

    • available in 1 gallon and 5 gallon pails

  • Spray Grade won’t clog up spray equipment

    • available in 1 gallon, 5 gallon pails, and 55 gallon drums

Data Sheets