How do you mix Sherwood conversion varnish?
Mixing Ratio: 1 gallon KemVar Varnish 3.8 fl. oz. (3%) V66V21 Catalyst Reduce up to 50% with Butyl Acetate R6K18 or MAK R6K30 to maintain HAPS compliance. Toluene, Xylene or Hi Flash Naphtha 100 may also be used, but are not HAPS compliant.
How much thinners do I mix with varnish?
How much thinner is enough? Opinion varies. If the varnish you are preparing will be applied as a first coat, finishing guru Steve Mickey recommends a mixture containing 20 to 25 percent thinner; subsequent coats should contain about 5 or 10 percent thinner.
What is a catalyzed conversion varnish?
Conversion Varnish is a chemical-cured, fast-drying finish that consists of 2 parts: the finish and an acid catalyst that’s added just before spraying. The catalyst creates a chemical reaction (cross-linking) in conjunction with added heat-curing that creates the hardest, most durable finish available on the market.
Can you thin conversion varnish with lacquer thinner?
You don’t thin SW conversion varnish with lacquer thinner ever. You thin with Xylene. The other solvents present in lacquer thinner (primarily alcohols) are not compatible with conversion varnish.
Can you touch up conversion varnish?
Nicks and scratches can be touched up on-site, says Crabtree. Beyond that, cabinets generally are returned to the shop. Campbell adds that repairing damage to conversion varnishes is more difficult due to the varnish’s chemical cure. “You can’t just re-wet it with another coat like you would with a lacquer.
Is conversion varnish good for table tops?
There is no doubt that Conversion Varnish is the most durable finish for restaurant tables. The type of conversion varnish that Viridian Reclaimed Wood uses has been tested for compatibility with Ecolab’s most common cleaning agents that are used in restaurants.
What is the best thinner for varnish?
The thinner to use for oil-based varnish and polyurethane is mineral spirits – 3 or 4 parts varnish to 1 part mineral spirits. The ratio isn’t crucial. If you prefer to apply these finishes with a rag, thin them with about 50% mineral spirits, essentially creating your own ‘wiping varnish’.
Do you need to sand wood before varnishing?
If the varnish is cracked or flaking, you must make the wood bare by sanding or stripping the entire surface. At this point, many people reach for a sander. Although sanding can be effective, it can also be extremely hard work and very dusty.
Can you brush conversion varnish?
When you use the term “varnish,” you’re probably referring to conversion varnish if you spray finishes. If you brush or wipe, you’re probably referring to one of the many varnishes sold at home centers and paint stores. Conversion varnish, also called “catalyzed varnish,” dries fast, so it almost has to be sprayed.
Can conversion varnish be sprayed over lacquer?
Can polyurethane or conversion varnish be sprayed over lacquer? Kevin Hancock: It can, but it is not a very good idea. If the surface were to get softened from heat, the lacquer film would soften at a different rate than the topcoats.
Does conversion varnish scratch easily?
I try to avoid rubbing out any scratches in conversion varnish and frankly, most damages are not scratches that can be rubbed out. The catalyzed conversion varnish does not scratch easily (as noted in the previous discussions). I find most touchups to be easiest using a set of touchup markers for color.
How do you buff a conversion varnish?
The best way to dull it down is to get to full gloss and then go over that with an Abralon P2000 grit pad used wet or 3M’s Trizact used wet – both of these are used on a random orbit sander. This is the only method that I’ve had any success with when it comes to dulling a finish.