SKU: AJ-28ER-ZNQQ

Osmo WR Base Coat Clear (4001)

Name: Osmo WR Base Coat Clear (4001)
Brand: Osmo
SKU: AJ-28ER-ZNQQ
Price: 20.61 GBP
Availability: InStock

Size

0.75L 2.5L

Product variants

£20.61

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Free Next Working Day Delivery

Free Next Day Delivery on all orders (Please note that occasional delays may occur due to courier disruptions or stock availability).
Orders placed before 3 pm will be dispatched on the same working day for delivery the next working day.
Orders placed after 3 pm on Fridays will be dispatched first thing on Monday for delivery on Tuesday.
Small items are shipped via Royal Mail with 24-hour tracked delivery.
Large and oversized items are shipped via FedEx with next day tracked delivery.
Tracking information will be provided via email or text once your order has been dispatched.
We deliver to mainland UK only.
Orders placed for delivery on a bank holiday or during our closure period will be dispatched on the next standard working day.
Exclusions: Levelling compounds are not eligible for delivery

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Select the click & collect option at the checkout.
You will receive email confirmation that your order is ready to collect (generally within 5 minutes)

Opening hours: 7am - 4pm Mon-Fri

Collection address:

Wiltshire Wood Flooring Supplies

Unit 1

Penton Business Park

Stephenson Road

Churchfields Industrial Estate

Salisbury

SP2 7NP

Description

Osmo 4001 WR Base Coat is a clear wood impregnation for exterior use. It is a preventive preservative with active ingredients to protect against plant and animal pests such as blue stain, rot, mildew and insect attack. Nb. 4001 is the replacement for 4005 with the key differences that it is now oil based and contains protection against insect attack as well as biocides.

The base coat penetrates easily and deeply into the wood - proving extra moisture protection for the wood. Key features include:

Clear (4001), exterior base coat only
Especially recommended for windows, cladding, garden furniture
Reduces swelling and shrinkage and protects against fungal, algae, blue stain, mould growth & insect attack.
Extremely water-repellent, extra moisture protection
Ideal primer for Natural Oil Woodstain, Natural Oil Woodstain Effects and UV Protection Oil
Will improve the coverage of the above when used on rough sawn timber
Available in 0.125, 0.75 and 2.5 litres
1 litre covers approx 5 - 6 m² with 1 coat. Product coverage will depend significantly on the wood's characteristics. These figures are for smooth planed or cut timber. Other surfaces such as rough sawn, aged timber etc may lead to significantly reduced coverage.

Number of coats:
1 coat, a top coat from the Osmo product range must follow.

Application:
Apply by brush, dipping or flooding, spray only in an enclosed unit with appropriate protective equipment.

Drying:
Approximately 12 hours in normal climatic conditions (23°C & 50% relative humidity). Lower temperatures and/or higher humidity can increase the drying time. Allow good ventialtion when drying.

Storage:
Up to 5 years or more if the can is kept dry and sealed tightly. Store away from direct sunlight and extremes of temperature.

FAQs

1. What is Osmo WR Base Coat Clear (4001)?

Osmo WR Base Coat Clear (4001) is a clear wood preservative designed for exterior timber structures. It penetrates deeply into the wood, providing protection against wood-destroying fungi, blue stain, and insect attack. Additionally, it is highly water-repellent, reducing the risk of swelling and shrinkage.

2. What surfaces is this product suitable for?

This base coat is ideal for exterior wood surfaces not in direct contact with the ground or surface water, such as:

Facades
Windows (inner and outer parts)
Exterior doors (inner and outer parts)
Carports
Shutters
Balcony railings

3. How do I apply Osmo WR Base Coat Clear (4001)?

Preparation: Ensure the wood surface is clean, dry, and free from frost, with a maximum moisture content of 20%. Remove old paints or lacquers completely.
Application: Stir the product well before use. Apply thinly and evenly along the wood grain using a brush or roller. For optimal protection, coat all sides of the wood, including edges and end grain.
Drying: Allow approximately 12 hours to dry under good ventilation.
Top Coat: After the base coat has dried completely, apply a suitable Osmo top coat, such as Natural Oil Woodstain or UV-Protection-Oil, to provide UV protection and enhance durability.

4. How many coats are required?

Typically, one coat of Osmo WR Base Coat is sufficient. However, depending on the wood species and surface characteristics, 2-3 coats may be necessary to achieve the desired protection.

5. What coverage can I expect?

One liter covers approximately 5-6 square meters with one coat. Coverage may vary based on the wood's characteristics and surface texture.

6. Is this product suitable for interior use?

No, Osmo WR Base Coat is intended for exterior use only and should not be applied to interior surfaces.

7. How should I clean tools after application?

Clean brushes and rollers with Osmo Brush Cleaner or a suitable solvent immediately after use to maintain their condition.

8. Are there any precautions to take during application?

Apply in dry conditions with temperatures between 10°C and 30°C.
Avoid application if rain is imminent.
Protect the surrounding environment, such as soil and plants, from splashes of the product.
Ensure good ventilation during drying.
Always perform a test application on a small area to confirm compatibility and desired results.

9. Does this product require a top coat?

Yes, Osmo WR Base Coat is not a standalone finish. It must be overcoated with a suitable Osmo top coat within three months to provide UV protection and enhance durability.

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