<p>Performance difference From the performance point of view, the primer is used to fill the lacquer surface to support the topcoat; while the topcoat is applied to the last layer of the building wall synthetic wood panels buy now pay decoration to increase the thickness of the paint film. However, the coating thickness of the topcoat needs to be provided by the primer, so the topcoat not only serves as a decorative effect, but also serves to protect the primer.</p> <p> In addition, the primer has the advantage of getting twice the result with half the effort, filling the pores and allowing the object to reach a certain decorative effect, thus reducing how to add height to vinyl fence the amount of topcoat. However, the topcoat is not filled, and has appropriate gloss/color, leveling, adhesion, and the like. </p> <p>The difference between the primer and the topcoat is different. With the advancement of society, there are many brands of paint on the market, and primers and topcoats are no exception. But the price of the different brands of primer and topcoat is very different. In addition, the difference in composition and use also makes the price high or low. However, it is also important to remind everyone that in addition to the price to be paid at the time of purchase, the quality and decorative effects should be equally valued, so that the decoration of the living room can be beautifully decorated.</p>