Osmo Hardener for Oil Stain

Size Price Quantity
6631 Hardener for Oil Stain 60ml $ 25.24

Osmo Oil Stain Hardener is a hardener which may be added to a 1 litre can of Osmo Oil Stain, where accelerated drying is required - such as for commercial areas such as shops, cafes and restaurants etc. It is also recommended when staining timbers with high resin and oil content such as Matai, Totara and Mahogany etc.

Addition of the Hardener shortens the drying time of the oil stain from 12 hours to just 4 hours, which means one coat of stain and one top coat can be applied in one day.

Add the contents of a 60ml bottle of Hardener to a 1 litre can of Oil Stain, and stir thoroughly. Pot time is approximately 60 minutes.

Osmo Hardener is only suitable for use in OSMO Oil Stain. It is not suitable for use in other OSMO products. It is a professional use product only.

Osmo Hardener for Oil Stain is a flammable liquid. It contains isocyanates, which may cause serious health issues if inhaled or swallowed. Safety details are printed on the can's label, and an MSDS can be downloaded from this page. 


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Oils are heavy and expensive to transport around the country - especially across Cook Strait. 

For the most efficient and cheapest shipping, we use Castle Parcels/Post Haste Couriers which is a 2-3 day delivery service throughout NZ (except rural). Freight charges on the web site are based on the weight per package delivered to your door. 

For Auckland and regional (Whangarei to Hamilton) we use NZ Couriers which is an overnight service.

Orders can be collected from Natural Oils' warehouse at 218H Marua Road, Mt Wellington, Auckland. Warehouse hours are variable, but are generally 9:00am - 2:00pm weekdays. Please phone (09) 575 9849 before calling, to ensure the warehouse will be open when you wish to collect.

Delivery Policy

Goods are generally shipped to the buyer on same, or next business day via “Track and Trace” couriers. Courier costs are calculated on the weight, number of packages and destination of the order.

Orders are shipped from Auckland. Delivery can vary depending on location, but is usually 2-3 business days. Rural deliveries will generally take an extra day. Where goods are shipped inter island, the seller cannot be held responsible for delays in transit over Cook Strait. Bad weather can delay ferry sailings and add 1 or 2 days to the normal delivery time.

Shortages, Damages or Loss in Transit

Liability for shortage in the quantity of goods delivered is limited to making up the shortage. Where the buyer believes there is a shortage in the quantity of product delivered, the buyer must notify Natural Oils Ltd of any such claim within 7 days of delivery, and must provide Natural Oils Ltd with a reasonable opportunity to investigate that claim.

Goods leaving Natural Oils' premises are adequately packed. Any loss or damage in transit must be notiified to Natural Oils Ltd who will then lodge a claim against the carrier in the prescribed manner.

No damage claims will be considered after 7 days of receipt of goods.