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$191.99
Osmo WR Base Coat 4001 Clear 2.5L – Outdoor Wood Preserver & Microporous Base Coat for Exterior Timber – Protects Against Rot, Blue Stain & Insect Attack – Reduces Swelling & Shrinkage
★★★★★
$191.99
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1
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About this item
- PROTECT & PREP EXTERIOR WOOD – Give timber lasting protection with Osmo WR Base Coat. This clear wood preserver penetrates deep into the wood to guard against rot, blue stain and insect attack while preparing surfaces for an Osmo exterior finish
- DEEP-PENETRATING WOOD TREATMENT – Specially developed for exterior timber, this ready-to-use base coat contains active ingredients that protect against fungal decay and insects while allowing the surface to breathe and regulate moisture naturally
- REDUCES SWELLING & SHRINKAGE – The deep-penetrating oil-based formula helps minimise wood movement caused by moisture changes, improving long-term stability. One application provides lasting protection with no need for future recoating
- EASY TO APPLY – Suitable for cladding, fences, windows, doors and shutters. Apply by brush or roller for even coverage of approx. 5–6m² per litre. Finish with an Osmo exterior wood finish such as Natural Oil Woodstain or UV-Protection Oil
- OSMO: GOOD FOR WOOD – With over 140 years of wood expertise, Osmo oils, wood finishes and wood protectors combine natural oils with advanced woodcare technology to deliver reliable, long-lasting exterior protection
Product details
Customer reviews
What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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