Register / Login | Basket Total: £0.00
Find Wood Flooring Supplies



 

Floor Finishing Issues: Nibs, Abnormal Grainraising

 See also...
Choosing a Floor Fitter
General Product & Services Advice
Wood Floor Sanders Hire
Maintenance of Lacquered Floors
Guide to Abrasives Types
Floor Finishing Issues: Wood is Darker Around Edges
Floor Finishing Issues: Score Marks Over the Surface
Floor Finishing Issues: Swirl Marks
Floor Finishing Issues: Poor Adhesion
Floor Finishing Issues: Long Scratches
Floor Finishing Issues: Chatter Marks
Floor Finishing Issues: Black Dots
Wood Types Suitable for Flooring
Choosing Wood Floors

If you and properly and use grit 120 or finer for the final sanding, there usually aren´t any problems. However, if a coarser abrasive than grit 120 is used, the finish tends to penetrate deeper into the pores of the wood and gives more grainraising.

This is one possible reason why abnormal grainraising occurs. Another is the amount of finish you use, if too much finish is applied on the sanded wood, more water comes into contact with the wood fibers and more grainraising occurs. Follow the recommendations given by the manufacturer.

If the first coat of finish hasn´t been given enough time to dry, this can also cause grainraising. Suppose abrading is performed as soon as possible after applying the finish and then another coat of finish is applied immediately after. As the underlying finish hasn´t had time to dry properly, the new coat can penetrate through to the wood and more grainraising occurs.
Naturally, some species of wood are more vulnerable to grainraising than others. Pine is especially problematic.

Practical tip: remember that proper sanding is very important when abrading between coats. Do not use a screen to abrade a waterborne finish as it creates too much friction and can cause swirl marks. The Scrad system is recommended for abrading BonaKemi´s waterborne finishes.


Buyers Guide

How To Buy
Terms and Conditions
Delivery and Charges
Guarantee
Returns Policy
Flooring Advice Centre
Choosing a Floor Fitter
General Product & Services Advice
Wood Floor Sanders Hire
Maintenance of Lacquered Floors
Guide to Abrasives Types
General Information
Floor Fitting Service
Company Information
Why Us?
Privacy Policy
How to Order?
Flooring News
Kahrs Introduced New Additions to Their Collection
Bona Introduced a New Waterborne Lacquer
Boen Flooring - Greater Choice Of Products
Flooring Guides
Kahrs Flooring
QuickStep Flooring
Boen Flooring
Balterio Flooring



Bona Stockist | Osmo Distributor | Solid Oak Flooring & Oak Parquet Flooring
QuickStep Laminates | Balterio Laminates | Boen Flooring | Kahrs Flooring