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Linitop Grain Filler

Transparent grain filler for interior woodwork

Linitop Grain Filler
  • Fills small surface imperfections before application of the top varnish
  • Never apply directly to the bare wood but only after a first coat of Linitop Vernis
  • Re-coat with a solvent-based varnish for an ultra smooth finish
  • Exceptional filling properties - can be applied to old varnish in a good condition
  • Easy sanding and used straight from the tin

Linitop Grain Filler (also known as Linitop Bouche-Pores) is a transparent, semi-gloss wood grain filler for interior woodwork. It is used between two coats of varnish to achieve an ultra-smooth finish and is perfect for use with a clear solvent-based varnish.

Grain Filler is used straight from the tin so does not require mixing and has good brush application properties. It fills any surface imperfections enabling you to achieve a superior finish and has exceptional filling properties so can even be used with old varnish in good condition.

Linitop Grain Filler must not be used directly on bare wood, its place is after the initial coat of varnish. Give the wood a light sanding and dust off before applying the Grain Filler and then leave for 24 hours before finishing with varnish.

Ideal uses for Linitop Wood Grain Filler

  • Achieving an ultra smooth finish on any interior woodwork
  • Filling small surface imperfections before using a topcoat varnish
  • Reviving old varnish which is still in good condition
  • Renovating resinous woods, broad leaved woods and tropical hardwoods

Always read the Linitop Wood Grain Filler Product Information before using and follow the instructions carefully.

Recommendations before application

  • Shake well before application
  • The varnish used must be of the thick binder type, such as Linitop Vernis
  • It is recommended doing a test beforehand on a small area
  • Avoid stacking the woodwork before it has completely dried
  • After opening the pot it is advisable to use all of the product
  • Do not apply to wood treated with a water repellent
  • Not suitable for outdoor use
  • Do not apply to polishes or sealed wood, or prepare beforehand to make the wood bare
  • Complied with the applicable standards and DTU
  • The moisture of the wood before application must not be grater than 12%

Surface Preparation

New wood surfaces

  • Degrease, sand and clean
  • Apply a coat of diluted Linitop Vernis

Previously finished wood

All previous coatings must be completely and thoroughly removed.

  • Oils and sealers: Strip with Aquanett or Prepdeck then neutralise with Net-Trol
  • Solvent (oil or alkyd based finishes): Strip with Dilunett then neutralise with Net-Trol
  • Acrylic finishes (Water-based): Strip with Prepdeck then neutralise with Net-Trol
  • Other finishes i.e. 2 pack epoxies, urethanes… Strip with DSP 800 then clean the surface to remove residual paraffin

Then Apply a coat of diluted Linitop Vernis.

This preparation is essential before application.

Note: Hardwoods and woods rich in tannins e.g. Oak, Chestnut, Douglas Fir, Cedar, etc. may darken with Aquanett, Prepdeck and Dilunett, neutralising with Net-Trol immediately after rinsing will lighten and restore the woods colour.

Application Guidance

Application tools

  • Brush


  • Always prepare the wood first with a coat of diluted Linitop Vernis
  • Apply a coat of Wood Grain Filler
  • Sand lightly after hardening, clean and finish with a finishing varnish

Clean Up

  • Clean all tools and equipment with white spirits whilst still wet. If allowed to dry, remove with paint stripper.

Tips from the Professionals

  1. Work in well ventilated rooms
  2. Wear suitable protective equipment such as rubber gloves, a mask and glasses


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This coverage indication is only a guide and actual coverage is dependent on surface type, age, porosity etc.
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Coverage: 10m2 per litre
Tools: Brush
Suitable for: Interior use
Clean up: White Spirits
Drying Time: 24-48 hours
Suitable Surfaces: Resinous, broad leaved and tropical hardwoods

Technical Data

Read the full technical information for Linitop Grain Filler including MSDS on our corporate website.