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Painting & Decorating

Sanding Sequence For Bare Hardwood Doors

Anonymous user 28/02/2024 - 4.04 PM

Hi All, A) I am sanding previously dark stained hardwood mahogany doors to pretty much bare. I am unsure of the sanding sequence apart from never to skip grades. They have been done with 80 Grit so far but I need to smooth them out. I have read that some folks say never go above 120 Grit to allow the primer to nicely penetrate through but other sources seem to say to sand to between a 180 - 240 grit before applying primer so I am unsure as how to proceed. So before priming & painting white, should I go: 1) 80 to 120 2) 80 to 120 to 180 3) 80 to 120 to 180 to 240 B) We also have 2 large disabled sized hardwood mahogany doors that were coated with a clear Ronseal Varnish on them. What sanding sequence should be done on these to ensure a smooth painted finish afterwards? Really appreciate clarification for a nice smooth finish! Thank You!

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3 Answers

MTP Renovations Limited

Rating: 5 out of 5
Broxbourne
80 grit is abit aggressive for bare wood. i would advise sticking with 120 & lightly sanding between coats making sure you go with the grain. bare wood will need a waterbased primer & then a product called 'zinzar' to hold back any vanish left in the wood. your doors will need the shine sanded off of them & then coated with the same product to hold back the varnish. 'zinzar bin' is the best product for this
Answered20 June 2022
8

K.P.G. DECORATORS

Rating: 5 out of 5
Sheerness
It’s not bare wood, It’s mahogany doors sanded back. If I’ve already sanded back to bear on bate then a 240 will smooth them off. Use the red zinser. Shellac based. Then lightly sand between coats. The varnish ones just a light rub down and same zinser. Then build coats up with light sand between
Answered23 June 2022
0

TS Painting & Decorating

Rating: 5 out of 5
Warminster
Depending on the "condition of the doors" anything from 120 - 180 grit would do the job. If you're then happy with the prep, either use a product called, Zinsser Bin which stops knots bleeding through,( 2 coats), or Zinsser stain cover. Before applying your top coat lighlty rub down using an inbetween coat sandpaper 200-300 grit. Everyone has their own menthods, I have mine. Hope that helps.
Answered23 July 2022
0