H3 LOSP Preservation System

The complete range of Woodhouse Weatherproof® products are H3 LOSP (Light Organic Solvent Preservative) treated to be resistant against termite and fungal attack. The preservative uses an organic solvent to transport the active ingredients into the radiata pine.

LOSP does not saturate the wood cells, minimising deformation to the product and ensuring that the original size, shape and strength is maintained.

For any cut ends, coat with a preservative resealer followed by a quality primer to effectively repair the treatment envelope.

The organo-biocide LOSP preservative used in the treatment process is a combination of azole fungicides to to resist against decay, and permethrin insecticide to protect from termite attack and other wood boring insects.

The preservative system is specifically for above ground applications and is covered by a conditional manufacturer's warranty* for a period of 25 years.

*Please refer to separate manufacturer’s guarantee available on request.

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