The instruction manual for your spray gun will specify the proper procedure for cleaning your spray gun. You do no need to remove the fluid tip and needle every time you clean. Here are a few simple steps for cleaning your gun.
Walnut shells would most likely be best as it will not damage the brick. http://clemtex.com/products/blasting-media/walnut
Your old spec calling for silica sand is outdated. Silica sand should never be used for blasting. Please see our website hereto learn the hazards of blasting with silica sand.
The reason your spec calls for silica sand is because it is virtually free of iron oxide (Fe2O3). All abrasive will leave a small amount of material on the surface after blasting. Iron Oxide is dissimilar to stainless steel and can cause a galvanic corrosion on the surface. Blast materials that are free of iron oxide include walnut shell, glass bead, crushed glass and aluminum oxide.
I have had many customers use fine Green Diamond, Starblast and garnet with success to help reduce cost. If you must use an iron-free product and you have a large area to blast, the most common answer is to blast with an inexpensive abrasive first, then sweep blast with aluminum oxide or glass beads as the last abrasive used per spec.
Grade D is a classification of breathing air developed in ANSI/Compressed Gas Association (CGA) G-7.1 – 1989. It has been adopted by OSHA in their respiratory standards in 29 CFR, 1910.134. For the technical specifications, please see the OSHA website at this link.
Grade D air can be achieved using a 3 stage filter and inline Carbon Monoxide (CO) monitor*.
*There are a few more specifications to achieve Grade D air, but a 3 stage air filter and CO monitor are the main two that makes most air systems compliant. See this pdf for a full list of specifications.
I have broken down the consumables per each equipment below, however, these prices are based on blasting about 3 days a week and about 4 hours a day. If you are blasting more, then these cost will need to be adjusted.
Other Equipment Cost:
To dispose of abrasives, you need to have a sample tested by your waste disposal company. They will inform you if you can dispose of it as non-hazardous waste or if it is hazardous and needs to be disposed of properly. If it is non-hazardous waste, a 20 yard container full of spent abrasive costs about $1,200 to be disposed of. If it is determined that the spent abrasive is hazardous, then price changes depending on what hazards it contains.
A Graco Xtreme 60:1 can use up to 150 CFM of air when operating at maximum pressure around 100 PSI and maximum fluid flow. Real consumption for most materials may be 40%-50% this value. You may reduce the air volume requirement by using a smaller orifice airless spray tip.
Start with both regulators at 0psi. Hold the trigger down on the spray gun over a disposable cup/bucket. Slowly increase the pressure on the paint regulator (the one with the down port supplying air to the pressure pot). Stop increasing once you have a stream leaving the spray gun that travels straight for approximately 2-3 inches before arcing down.
For the air regulator (has your red air hose connected), add air pressure until you have full atomization. Too much atomization pressure leads to excessive overspray and orange peel finish. Check out this video tutorial!
Yes, the drum (stilpan) is replaceable. The lead time is two weeks from date of the order. These are items that are not stock and must be fabricated.
The part number for the LS-55E’s stilpan is A100440. Please contact us and we can provide pricing information.
Yes. Our shop has the capability of completing this. Please contact our office at 713.672.8251 so we may discuss in detail.