Amber Varnish Extra Resin

From 49,00 

Extra Resin Varnishes are used for special ageing techniques on classic wooden stringed instruments, such as the violin, the viola, and the cello. They provide a beautiful, transparent, and highly resistant film.  

They are also appropriate when easy chipping and hard varnish are required. It was developed and tested in collaboration with Peter Westerlund.   

Before use, it is recommended to test on pieces or parts of wood like those of the instrument to be treated to predict the colour tone that can be achieved in each case. 

Safety Data Sheet and Classification

Please read the Material Safety Data Sheet (MSDS).

13310 (EN) OW Extra Resin – Ambar Varnish (V2)

Classification and Security

Application Guidelines

These are short, general indications. For more detailed instructions, please download the Technical Data Sheet available for this product.


These varnishes are ready for use, so diluting them before usage is unnecessary. 

They can be applied by hand (with appropriate gloves) or by brush. The best results are obtained with a multilayer system, using very thin layers, thus ensuring good drying of each layer.  


Once the varnish is applied, it should be exposed to natural UV light or under lamps for about 6-10 hours, as this allows us to control the intensity of the light and the drying times. 


Complete drying of each layer is essential to guarantee the quality and durability of the final coating and to avoid future surface defects.  

Security and Storage



Under Regulation No. 1272/2008 (CLP), the product is not classified as hazardous. 

The product is non-flammable under regular storage, handling, and use conditions. It is also not classified as hazardous to the environment. Keep the product away from drain surfaces and groundwater. 



Keep the container tightly closed in a cool place and avoid direct light exposure, heat sources, radiation, static electricity, and contact with food. Under these conditions, the product remains stable for more than two years.  

Over time, a white solid deposit appears at the bottom of the bottle. It must be incorporated into the liquid by shaking before use. 

Once opened, the remaining product inside the bottle can form a superficial skin. This skin must be carefully removed before using the product again. Do not mix with liquid varnish. If necessary, filter the varnish. 

More Resources

Safety Data Sheet

Technical Data Sheet