Softwood Lye

Item number:

Minimizes yellowing of softwood

  • Preserves the light colors of the wood
  • Requires after-treatment with oil or soap 
  • Only for softwood
  • Contains white pigments 

*The wood sample is shown on pine

3.381 FL.OZ.
84.535 FL.OZ.

Product details

  • Description
  • Specifications
  • Technical data sheet
  • Safety data sheet


Sodium hydroxide, water, white pigments, <5% non-ionic surfactants.


10 g/l, maximum VOC content (A/g (WB)): 30 g/l.


1.00-1.10 g/ml.


pH 13-14

Shelf life:

3 years

Application Temperature:

+59-77°F and approx. 50% air humidity.


110-130 sq.ft./L



Cleaning of tools:

Use water


+50-77°F. Keep out of reach of children. Do not expose to heat (e.g. sunlight). Store frost-free during winter and cool during summer.


84.535 FL.OZ.





Solid content:


Drying time:

6-12 hours at 68°F

Softwood Lye is used for priming of unfinished or newly sanded interior woodwork such as floors, stairs, furniture, and panels. The priming minimizes the wood from yellowing and enhances the natural grain of the wood, producing a white wash finish. Softwood Lye may be used for all types of softwood such as pine, spruce, and pitch-pine. Used on larch wood, an antique grey/brownish finish is created. Softwood Lye may not be used on hardwood. The final color is achieved after 1-2 months.


Products in use
The unfinished woodwork must be clean, dry and finely sanded (grit 100-120) before applying the lye.

Always remember to test on a less visible spot to check the compatibility of the surface with the product.

  1. Shake the container well and pour the Lye into a plastic bucket. It is important that no pigments are left in the container. Stir regularly during the application to prevent the pigments from settling to the bottom.
  2. Apply an even coat of the lye with the WOCA Applicator, a nylon brush or roller lengthwise along the grain. Apply at least 1 L of lye per 110-130 sq.ft./L of wood. Leave wood to dry for approx. 6-12 hours at 68°F.
  3. De-nib standing fibres and remove excess pigments with a medium e.g. green or maroon, sanding polishing pad. Remove the sanding dust with a vacuum cleaner.
  4. Finish the wood surface with a WOCA oil or soap.
Softwood Lye can assume a greenish colour which will disappear in the course of time.