Both have a limited shelf life as a result. I like sherwin williams products and i actually use them for nearly all of my lacquer.
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Sher wood catalyzed lacquer precat is a fast drying high performance catalyzed lacquer for the general wood finishing market.
Catalyzed lacquer finish. Ultralaq water white precatalyzed lacquer products are pre catalyzed nitrocellulose clear lacquers designed for the professional woodworkers who demand maximum performance in a high solids self sealing ready to spray finish. There is a fairly significant difference between catalyzed usually referred to as post catalyzed lacquer and pre cat. Different types of lacquer.
Pre catalyzed means the manufacturer or dealer adds the hardening agent before you receive the product photo above you would mix post catalyzed material in your shop. Pre catalyzed lacquer is very a very durable product and what makes it different from otherregular lacquer is that it has a catalyst or hardener added into in when you purchase it. You can smell the difference in between regular lacquer and a pre cat as the pre cat has a distinctly more acrid smell.
Essential methods with acrylics oils and more fox chapel publishing learn how to choose prepare apply the perfect finish for your creative wood projects. Polyurethane coating for furniture. After catalyzation it provides 6 months pot life as a precat lacquer.
12 month shelf stable precatalyzed formula. Lacquers conversion varnish polyurethanes polyesters and even some vinyl sealers. The lowdown on lacquer lacquer consisting of various resins dissolved in lacquer thinner has proven a versatile finish for almost a century.
Thats the acid additive that when applied reacts with the air and the other solvents in the mix to make a chemical cure as appose to just an air dry cure. The finish however is very durable as a result of the chemical curing process. At least according to awi.
Each of these finishes has their own particular set of characteristics with different strengths and weaknesses. Ready to use with no mixing required. Durability of a catalyzed finish.
Sher wood catalyzed lacquer combines the toughness and chemical resistance of catalyzed varnishes and the depth and appearance properties associated with high quality nitrocellulose lacquers. The benefit is a tougher and more water resistant finish. A look at pre cat lacquer.
The catalyst can be added ahead of time pre catalyzed or in your shop post catalyzed. Other lacquer post catalyst lacquer is where the userprofessional painter adds in the catalyst at their shop before using it. From the college of wood finishing knowledge by ron bryze there are many different types of catalyzed finishes.
Finishing techniques for wood crafters. Lacquer usually isnt used as a self sealing finish for one thing.
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