Then move to normal shellac mixture. First of all lets back up a bit and figure out what you mean by sanding sealer commercial sanding sealer is designed to make sanding easy by including lubricating stuff like zinc stearate.
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When youre done sanding you prepare for the next finish coat by wiping off the fine soapy residue with a rag.
How to make sanding sealer. Thank you for listening this would be very helpful. Hello guys i live in spain and i can not buy sanding sealer somebody knows the components or how to make it home made. But in reality if you inspect closely the wooden surface will have minute pores and jagged valleys.
Application of stain directly on top of the sanded surface may and i repeat may result in uneven absorption of the stain. How to make sanding sealer when i was a kid i was really into designing and building model rockets. As well as chemistry.
If one wants a very smooth finish on balsa model rocket fins you started with the cut balsa and then before applying any paint you first sealed the fins with several coats of sanding sealer sanding between each coat. Sanding sealer is lacquer or some other basic coating with zinc stearate added. The sanded surface of the wood looks very smooth.
The bulk of the product should be sanded off. It also makes the lacquer softer and acts as a lubricant when sanding so that sanding sealer powders off quickly and easily. However you can use out dated mixed shellac as the base for sanding sealer.
I cut it down more add 1 part normal shellac mixture to 4 parts dna and use to bring up the grain before final sanding. The stearate which is a soft fluffy soap adds loft to the lacquer making it build up and fill in pores much faster. The downside is that the durability of the resulting finish is compromised.
It typically dries in 30 minutes to an hour and you then sand it by hand using 150 or 220 grit sandpaper.
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