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.
The maximum recommended temperature for transferring this grade is 350Â°F on a heat press, or use the cotton setting on a hand iron. Higher temperatures could cause the InkJet colors to darken or turn gray. Transfer time is approximately 15 seconds. Set temperature at 325Â°F (375Â°F works fine). 2  Preheat garment for a few seconds to remove moisture from fabric. 3  This allows better adhesion of the polymer to the fabric. 4  Place the transfer face-down in the desired position and press under heavy pressure for 15 seconds.