CERTAINTEED 15kg High Density 90 Minute Setting Compound

• Specially formulated for high strength, used for repairs, to embed joint tape, and to conceal joints, fasteners and trim accessories on gypsum wallboard
• Specially formulated to harden with very little shrinkage 90 minutes after mixing
• This enables drywall joints to be taped and first coated with High Density 90, allowed to harden, and then finished with ProRoc Ready-Mixed All-Purpose Drywall Compound, all in the same day
• Ideal for repairing cracks and holes in interior walls and ceilings of drywall, plaster, wood, concrete and masonry

PRECAUTIONS:

• Do not use in mechanical tools
• Do not mix with any other material
• Use only clean water and containers
• Application tools and mixing equipment should be thoroughly cleaned between each batch
• Contaminants can adversely affect the compound's working life
• Discard the compound when it begins to harden
• Adding more water will not prolong the working life
• Maintain a minimum 13 degrees C (55 degrees F) room and material temperature during application and until completely dry
• A relative humidity between 20% and 70% is required for proper drying of this material
• When compound first hardens, it is still wet inside and should not be painted until it is completely dry throughout
• A minimum drying time of 24 hours is required before painting
• Compound must be smoothed before it hardens because it is difficult to sand
• Do not use compound as a finish coat or in any application where it must be sanded after drying
• Compound will not adhere to smooth non-porous surfaces
• Keep out of reach of children

FEATURES:

• Fast setting enables same day completion of drywall taping jobs
• Low shrinkage for trouble-free joint taping
• Mixes to a smooth, easily applied compound

COVERAGE:

• Approximate coverage is 26 kg of powder per 100 m2 (1000 ft 2) of drywall panel
• 600 sq.ft. of drywall when used for joints

STORAGE:

• Rotate stock to avoid aging problems
• Use within 60 days of delivery
• Store in a dry place

APPLICATION INSTRUCTIONS:

• Wallboard joints are normally finished using three coats of compound; the first to embed the taps, the second to cover the tape, and the third to finish the joint
• Can be sued for the first and second coats
• ProRoc Ready-Mixed All-Purpose DrywallCompound is used for the third coat
• Apply the first coat to the joint in a bandabout 64 mm (2-1/2") wide
• Tape over joint and embed with a broadknife
• Allow to dry for 90 minutes
• Apply second coat feathering it 50 mm(2") beyond first coat
• Allow to dry as above
• Apply two coats of compound to depressions made by fasteners and to corner beads and other trim accessories
• Allow to dry as above between coats
• Note: apply third coat to joints, fastenerdepressions, corner bead and other trim accessories using ProRoc Ready-Mixed All-Purpose Drywall Compound
• For best results, apply a primer-sealer priorto painting or wallpapering
• For severe lighting conditions, or if a glosspaint is to be applied as the finish coat, it is recommended that the entire surface of the wallboard receive a skim coat of compound before applying the primer- sealer
• This will assist in equalizing the rate of absorption of the gloss paint and help to avoid flashing at the joints

MIXING:

• Mix only as much compound as can beapplied in 45-60 minutes
• To prepare contents of a 15 kg bag, pourapproximately 8 litres of clean, cold water into a clean pail of suitable size
• Add compound to water
• Do not stir too vigorously or for too long
• Excessive mixing will shorten the workinglife
• The correct consistency is a smooth creamy mixture

DRYING TIME:

• Approximately 24 hours depending ontemperature and relative humidity

Our Return Policy

To be eligible for a return, refund or exchange, merchandise must be unused, undamaged, in its original packaging, and accompanied by the original bill of sale. If you're not satisfied that the items meet your needs, Home Hardware stores will accept the return of most regularly stocked items within 90 days of purchase. All refunds will be issued to the original method of payment.

Lumber, Building Materials, Furniture and Major Appliances return policies are subject to your local store.

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