Products

Application Methods and Rates

PROTIM^® FrameSaver^™ is applied to timber surfaces using a brush, roller or airless spray. Where multiple coats are to be applied, the second coat may be applied as soon as the first coat has been fully absorbed into the wood surface.

PROTIM^® FrameSaver^™ is most effective when it is applied to all surfaces of boards, where the risk of decay is greatest; the effectiveness decreases if fewer faces of the timber are treated. Research has shown that the treatment is effective in limiting the spread of the early stages of brown rot provided at least two coats are applied by brush to at least three faces of the timber.

For members where three faces cannot be accessed, a combination of two coats applied by brush and injection of PROTIM^® FrameSaver^™ into holes drilled into the interface between members is recommended. See the Department of Building and Housing document “Dealing with Timber in Leaky Buildings” for detail, available from www.building.govt.nz

NOTE: PROTIM^® FrameSaver^™ is soluble in water and will therefore be at risk of being depleted if continually exposed to wetting; under these conditions periodic inspection and reapplication is strongly recommended.

Application Rates

For preventative application on new timber with a thickness of 50^mm or less:

One liberal coat of PROTIM^® FrameSaver^™ should be applied to all timber surfaces.

For preventative application on new timber with a thickness greater than 50^mm:

Two liberal coats of PROTIM^® FrameSaver^™ should be applied to all timber surfaces.

For remedial application on infected timber — All sizes:

Two liberal coats of PROTIM^® FrameSaver^™ should be applied to at least three faces of timber. Where fewer than three faces are accessible, in addition inject FrameSaver into pre-drilled holes at the board interface (see application methods above).

Coverage Rates

One coat of PROTIM^® FrameSaver^™ will cover approximately 4 to 6m² per litre when applied by brush to the surface of timber; the actual coverage rate will depend on the surface roughness and absorbance of the wood.

The following chart will give some assistance when calculating the volume of PROTIM^® FrameSaver^™ required for a particular job:

TIMBER SIZE mm	Lineal Metres Treated Per Litre
70 x 35	19 - 29
70 x 45	17 - 26
90 x 35	16 - 24
90 x 45	15 - 22
140 x 45	11 - 16
190 x 45	9 - 13
240 x 45	7 - 11