Prepdeck stripper/cleaner is a professional, high-grade product specially designed for the removing of old solid and semi transparent stains, unsightly grade stamps and other finishes from wood. When diluted it makes a powerful cleaner for removing dirt and other surface contaminants from weathered woods.
Using Prepdeck is a fast and easy way to reduce mill glaze, (a shiny surface on new timber created through the milling process) which is essential to remove to help with the penetrating power of your wanted wood finish, for the best possible result.
Ideal uses for Prepdeck
- Prepdeck Stripper/Cleaner may be used on soft or hardwoods and thermo (burnt) wood.
- It is ideal for garden decks, fences, cladding, log homes and garden furniture.
- Perfect for the removal of stains, finishes and wood grade stamps.
- Great for getting rid of mill glaze easily, thus allowing the wood to get the best finish possible.
Remove any loose and flaking finish.
Brush off any physical surface contamination i.e. moss, general dirt etc.
To strip old finishes and grade stamps
To reduce mill glaze
Add 1 part Prepdeck to 4 parts water – except for Ipe; then add 1 part Prepdeck to 1 part water.
Dilute 1 part Prepdeck to 5 parts water up to a maximum of 1 part Prepdeck to 20 parts water, depending on condition of the surface.
Shake or stir product well before and during use including diluted solutions.
Use Prepdeck as is or dilute according to “Dilutions” above. Keep surface wet with Prepdeck while it is working.
After rinsing ALWAYS neutralise surface with Net-trol except where Tropitech is the chosen finish (see “After stripping/cleaning”). Do not use a wire brush to scrub the surface.
Work large areas in zones.
Allow wood to dry thoroughly, 2-3 days before refinishing.
Stripping and Cleaning
Work in areas that can be completed in 15-30 minutes.
Apply Prepdeck to the area to be stripped or cleaned and allow to work.
After appropriate time, test small area with nylon scrubbing brush to see if finish or dirt is lifting.
If lifting, scrub area with a stiff nylon brush, deck brush or use a Power Washer at 1000-1500 psi (70-103 bars) depending on type of wood.
Always work in direction of grain.
Rinse with copious amounts of fresh water, using the highest pressure from the water source available or use a Power Washer at 500-1000 psi (35-70 bars) working in direction of grain. (Rinse adjacent areas at same time).
NB: The use of hot water makes the job easier.
Reducing Mill Glaze
Apply Prepdeck to the area to be treated.
Allow to work 20 minutes.
Scrub area with a stiff nylon brush, deck brush or use a Power Washer at 1000-1500 psi (70-103 bars) depending on type of wood.
Always work in direction of grain.
Rinse with copious amounts of fresh water, using the highest pressure from the water source available or use a power washer at 500-1000 psi (35-70 bars) working in direction of grain (Rinse adjacent areas at same time).
Removing Grade Stamps.
Apply Prepdeck undiluted and scrub until stamp is gone. Rinse thoroughly.
After Stripping / Cleaning
Always neutralise the surface with Net-trol except where Tropitech is the chosen finish.
If Tropitech is the chosen finish, lighten wood with a 1 part bleach to 3 parts water solution.
Prepdeck will not remove the following types of coatings 2 pack or baked on paints:
Polyurethane paint and varnish.
Do not use on aluminium.
All that is required for clean up is water.
Things to remember
Always carry out a preliminary test prior to commencing the job, to determine the contact time necessary for stripping or cleaning the wood.
Wear chemical resistant gloves, safety goggles and protective clothing.
Hardwoods including exotic hardwoods and woods rich in tannins such as Cedar, Oak, Teak, Ipe etc may darken with Prepdeck.
Where Prepdeck has darkened the wood DO NOT allow it to dry, prior to using Net-Trol or a 1 part bleach to 3 parts water solution (see “After stripping/cleaning”).
Cover and protect everything you do not wish to strip or clean, including plants, shrubs and any aluminium surfaces.
When stripping vertical surfaces, work from bottom to top to avoid streaking.
Apply between 5°C and 35°C.
Do not apply in direct sunlight or on a hot surface.
Do not allow Prepdeck to dry on the surface. If drying occurs dampen with a mist application of water.