The proportion of heartwood to sapwood in the main stem does vary with species. Black locust, for example, usually has a very narrow band â often less than an inch â of functioning sapwood, whereas maple stems often can have many inches of sapwood and relatively narrow cores of heartwood.he proportion of heartwood to sapwood in the main stem does vary with species. Black locust, for example, usually has a very narrow band â often less than an inch â of functioning sapwood, whereas maple stems often can have many inches of sapwood and relatively narrow cores of heartwood.
1 Apply stain only at the proper temperature. 2  For most stains, 70 degrees Fahrenheit is the optimum, with the safety range from 50 to 90 degrees Fahrenheit. 3  Stains do vary, so check the label first.o assure the highest quality results when applying exterior wood stain, follow these steps and helpful tips from Sherwin-Williams stain experts. 1  Use the right brush. 2  Use a natural-bristle brush for oil stains and a synthetic-bristle brush for latex stains.
Removing Dry Oil-Based Paint. Remove a stain by mixing paint stripper with your absorbent material to make a creamy paste. Apply it to the stain and let it sit for 20 to 30 minutes. Scrape it up with the scraper. Sprinkle an abrasive cleanser over the stain, and scrub it thoroughly with a nylon brush.emoving Wet Oil-Based Paint. Blot as much of the wet paint with the towels as you can without spreading it or rubbing it in. Apply absorbent material to the remaining wet paint---use sawdust, crushed-clay kitty litter or a commercial product bought from a home improvement store. Leave it overnight, then sweep it up.