Certainteed 15kg High Density 90 Minute Setting Compound

Product Overview

Description

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:

COVERAGE:

STORAGE:

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 Drywall Compound is used for the third coat
Apply the first coat to the joint in a band about 64 mm (2-1/2") wide
Tape over joint and embed with a broad knife
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, fastener depressions, corner bead and other trim accessories using ProRoc Ready-Mixed All-Purpose Drywall Compound
For best results, apply a primer-sealer prior to painting or wallpapering
For severe lighting conditions, or if a gloss paint 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 be applied in 45-60 minutes
To prepare contents of a 15 kg bag, pour approximately 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 working life
The correct consistency is a smooth creamy mixture

DRYING TIME: