Selex trim boards from CMPC are finger jointed radiata pine, primed with 2 coats of high quality acrylic primer, and buffed between each coat. The factory applied primer gives a thickness to the coating that contractors desire, and the vacuum priming system is the process that contractors trust.Click to see full answer. Besides, what is a trim board?Trim boards are a decorative element which is added to the home to add a break between floor, ceiling, walls, doors and windows. Trim boards can be along the floor or around windows and can be flat or ornate.Subsequently, question is, what is CMPC lumber? CMPC CMPC is a leading company in Latin America in the production and marketing of forestry products, wood pulp, paper, tissue and paper products with over 90 years of experience in the industry. CMPC Maderas has products in over 50 countries, due to its solid supply chain and experienced distribution network. Keeping this in view, what is CMPC? CMPC (Spanish: Compañía Manufacturera de Papeles y Cartones) is a Chilean pulp and paper company, being the biggest worldwide according Forbes Global 2000 2018 ranking. Supplies, computer systems and other related administrative support, are centralized in CMPC SA Shared Services.What is primed finger joint?Clear Finger Joint Primed Pine is a perfect product for many uses, especially for painting. Uses include fascia, corner boards, trim base molding, furniture parts, shelving, and cabinets. Clear Finger Joint Primed Pine can be used for interior and exterior uses.