Like all types of galvanised materials zintec has been designed to resist rusting and by default it also resists acids, hence etch primers do not work on it. You should always keep the primer away from fire as it is highly flammable and the can may explode if it gets too hot. White Spirit and turpentine substitute should not be used as they are firstly not strong enough and secondly they leave a residue on the surface.

Anything in an aerosol can may do damage to your health, so you must be prepared before using spray-on etch primer. A ventilator mask is the best way to protect your respiratory system, and you should also only ever apply the primer in a ventilated area. You may also want to use goggles and gloves. It is also possible for residues to leech out of the moulding and /or paint to leech into the moulding. This is achieved by combining an acid with the paint so that the acid microscopically etches the surface of the substrate, thus forming a physical and chemical bond between the two.Ferrous metals contain iron and are pretty much anywhere you look. Examples are stainless steel, carbon steel, cast iron, steel and wrought iron. Known for their tensile strength ferrous metals are widely are used in architecture, engineering and industry – from large structures like bridges, to engines, household appliances and small engineering components. Wait for the first coat to dry for about three minutes before repeating for a second coat. You may also want to do a third coat when the second coat dries if you think this is necessary.

Etch Primer is a paint that is designed to physically bond itself to the substrate to which it is applied.A primer usually acts as some kind of protective or preparatory coating. Different primers can have different purposes. This often depends on the surface to which it is being applied. In general a primer does one or more of the following: It contains acid which etches the surface (creating a physical and chemical bond) and promotes adhesion of subsequent coats. Etch Primers only start to work after they start to dry. It is therefore beneficial to only use the thinnest coat possible.

After the primer has dried for 20 or 30 minutes, the tape can be removed. Although it’s possible to go right ahead and sand the car (dry) and follow with the paint, it’s a good idea to allow the primer to cure for several days, or even a couple of weeks if possible. The primer will shrink as it dries, so allow time for it to cure completely before painting. This type of primer is normally available as ‘high-build’ primer. High-build primer has three main functions: To provide a coating which can be sanded to give a smooth, sound base on to which colour coat can be sprayed. Hold the can 20-30cm away from your surface and spray, moving the can from side to side, overlapping slightly. It's a good idea to keep the same distance as this will help the primer apply evenly. The first and most important step when applying primer is to get the body’s surface ready first. Use compressed air to remove all dust and dirt from joints and recessed areas, then wipe the entire car down with wax/silicone remover.Primer is the basic foundation of a fine paint job, so don’t skimp. It takes about 4 litres of unthinned primer for the average car, so keep going around it until you’re sure you have it covered well. All Etch Primers need to be left for a minimum of 24 hours at a temperature of 18 - 20 degrees Celsius to dry properly. You can now apply the Etch Primer to the substrate, only the thinnest coat is required and a second coat is not necessary.

Commercial applications of galvanised steel apply a protective coat of paint to the metal by powder or dip coating. Wrap a piece of rag around the gun/cup connection point to keep paint from dribbling out when painting with the gun in a nozzle down positionSealers are usually lacquer based, so they’re easy to apply and dry very fast. Primer-sealers are generally enamel based. They can be used to prime bare metal and as a sealer under any enamel paint job. Can create a barrier where a surface has chemical properties (such as high alkaline content) which might react and affect application of the top coat Dust is the enemy - For a flawless finish on small parts, paint them inside a cardboard box. If you have larger projects, create a poly booth this will minamise dust and give you a cleaner finish. Records the default button state of the corresponding category & the status of CCPA. It works only in coordination with the primary cookie.