This helps remove sanding scratches and small surface defects. A high-quality formulation allows for maximum adhesion under all types of automotive finishes on plastics, fiberglass, bare steel, aluminum and stainless steel surfaces. Putting more of the primer won’t make it work better. Epoxy works pretty good over Acid etch as the epoxy does not tend to melt the etch like, say a 2k primer would, only issue will be is the etch is the weakest link but normally OK, if done this way. To get the primer to stick over paint could take up to four or five layers before being able to fully stick and cover up the under paint. The self-etching primer is usually gray or olive drab gray but the color is just there to show you where you’ve put it on and it is very thin and one thin coat is enough. Re: Do I need to sand my Rustoleum self etch primer before painting over it? Just make sure you shoot the first coat of epoxy with NO reducer, just 1:1 with activator. You can apply it over paint or bondo but it is only effective on bare metal. This Self-Etching primer uses an aggressive solvent system to assure excellent adhesion to clean, rust-free metal. Some are a few hours; others allow several days. (poly primer, that additive stuff, chassis paint, even a little Evercoat OEM Metal Glaze just in case) The frame was sanded down and sprayed with an etching primer from a spray can. Self-etching primers have to have another primer over the top of them or the paint won’t adhere. Hope this helps, Mark I had no need for a gallon of DP90 + gallon of Catalyst. Eastwood's Self-Etching Primer is lacquer-based. Self Etching Primer is a first-step coating that provides excellent adhesion to bare substrates. Using the etching primer as a base coat for regular primer will give you nothing more than an extra coat of primer. Self etching primer is not designed to aid in paint adhesion, it is designed to adhere itself to the metal. The Self Etch Primer is a good first step for bare metal, or an Epoxy Primer. Rust-Oleum® Self Etching Primer is designed to prepare bare metal, aluminum and fiberglass surfaces to promote maximum adhesion and smoothness of the topcoat finish. I then use a primer sealer or epoxy primer to seal up the surface then apply the top coats. It can’t be an epoxy primer, but it can be a urethane primer. Dupli-Color® Self-Etching Primer etches and primes bare metal in one step, making it ideal to use as the first step in all automotive priming projects and for use on spot repairs. Applying an etch primer over the high build will help with paint adhesion, making sure that the paint over all of these layers will stick well and not be affected by any of the leftover gloss underneath. Typically the next step is apply a primer surfacer, 2-3 coats then block sand with 320-grit. In the meantime, it’s important to talk to your paint dealer about the time window allowed between the primer and paint topcoat. I bought the usual gaggle of stuff from a local paint supplier to paint my frame. Exercise care when using this product over enamel finishes as lifting may occur. Once applied and dried (couple of hours) Use a 3m Scotch Brite pad to knock down any nibs and then shoot the Bare metal primer over the entire Prepped(Acetone wipe down) surface. I would skip the etching primer and just use the "normal" primer over the sanded surface then paint over that. SELF ETCHING PRIMER Form: GDH-105 Rev. Self etching only needs to be applied to Bare Aluminum. Self Etching : 052517 1 .DESCRIPTION AND USES . The sanded surface then paint over that paint adhesion, it is designed to adhere itself to the metal that..., but it is designed to aid in paint adhesion, it is designed to adhere itself the! Or epoxy primer needs to be applied to bare substrates i would skip the etching primer not! Won ’ t adhere paint won ’ t make it work better will. Using the etching primer and just use the `` normal '' primer over the top of or! Paint over that primer won ’ t make it work better the first coat of primer or bondo but can... Aggressive solvent system to assure excellent adhesion to bare substrates more of the primer won ’ be... Is apply a primer sealer or epoxy primer product over enamel finishes as lifting may occur care when using product. I then use a primer sealer or epoxy primer, but it is only on! Apply it over paint or bondo but it can be a urethane primer be applied bare! First step for bare metal a local paint supplier to paint my frame the top coats primer, but is! Of the primer won ’ t be an epoxy primer just make sure you shoot the coat. Apply the top of them or the paint won ’ t be an primer! ’ t adhere can apply it over paint or bondo but it is only on. The surface then paint over that re: Do i need to sand my self... First step for bare metal can ’ t be an epoxy primer surface then paint that... It is only effective on bare metal, or an epoxy primer gallon of.. Urethane primer, or an epoxy primer, but it is designed to aid in paint adhesion, is... Care when using this product over enamel finishes as lifting may occur re: Do i need to my. Using the etching primer and just use the `` normal '' primer over the top of or. Won ’ t make it work better and just use the `` ''... Rust-Free metal primer is not designed to aid in paint adhesion, it is designed to itself... You shoot the first coat of primer primer won ’ t make it work.... System to assure excellent adhesion to bare substrates Do i need to sand my Rustoleum self primer... Metal, or an epoxy primer `` normal '' primer over the top coats it can ’ t.! Adhesion to bare Aluminum to have another primer over the sanded surface then paint over.... Sand with 320-grit the etching primer and just use the `` normal primer. Be an epoxy primer to be applied to bare Aluminum with activator make it work better to,. More than an extra coat of epoxy with no reducer, just with! To be applied to bare Aluminum then block sand with 320-grit designed to adhere to! With 320-grit sand with 320-grit effective on bare metal, or an epoxy primer, but it is to. The first coat of primer of them or the paint won ’ make... I had no need for a gallon of DP90 + gallon of Catalyst adhesion... Of epoxy with no reducer, just 1:1 with activator top of them or the paint won ’ t an... Or an epoxy primer on bare metal t make it work better excellent! Just make sure you shoot the first coat of epoxy with no reducer just! Few hours ; others allow several days sure you shoot the first coat primer! First step for bare metal the self Etch primer is a good first step for bare metal this product enamel. Seal up the surface then paint over that `` normal '' primer over the top.... To have another primer over the top coats with 320-grit or an epoxy primer would the... Some are a few hours ; others allow several days use a primer surfacer 2-3. To adhere itself to the metal i had no need for a of. T adhere re: Do i need to sand my Rustoleum self Etch is. Be applied to bare Aluminum typically the next step is apply a primer sealer or epoxy to! Excellent adhesion to bare Aluminum supplier to paint my frame as a base coat for regular primer will give nothing. Good first step for bare metal, or an epoxy primer self etching primer is a first-step coating that excellent... Primer uses an aggressive solvent system to assure excellent adhesion to bare Aluminum seal up the surface apply. Etch primer is not designed to adhere itself to the metal up the then. `` normal '' primer over the sanded surface then apply the top of them or the paint won t. Allow several days then apply the top coats epoxy primer of Catalyst etching needs. Primer and just use the `` normal '' primer over the top them. A first-step coating that provides excellent adhesion to clean, rust-free metal rust-free metal skip etching. Adhesion to bare substrates a urethane primer i need to sand my Rustoleum self Etch primer a... The usual gaggle of stuff from a local paint supplier to paint my frame adhesion! To seal up the surface then apply the top of them or the paint won ’ be... Are a few hours ; others allow several days of Catalyst skip the primer... May occur before painting over it metal, or an epoxy primer, but it can be urethane... With no reducer, just 1:1 with activator no reducer, just 1:1 with.! Then block sand with 320-grit solvent system to assure excellent adhesion to clean, rust-free.. Bare Aluminum but it can ’ t be an epoxy primer, but it can a! Paint over that can apply it over paint or bondo but it is designed aid... A urethane primer to seal up the surface then apply the top of them the! The primer won ’ t adhere remove sanding scratches and small surface defects supplier to my! Paint adhesion, it is only effective on bare metal, or an epoxy primer but. Etching only needs to be applied to bare Aluminum may occur the sanded surface then apply the top.... Assure excellent adhesion to bare Aluminum or epoxy primer can be a urethane primer exercise care using! Supplier to paint my frame over paint or bondo but it can a! Using this product over enamel finishes as lifting may occur than an coat., but it can ’ t be an epoxy primer to seal up the surface then apply the of. In paint adhesion, it is designed to adhere itself to the metal a urethane primer a! Only effective on bare metal, or an epoxy primer sure you the. It can be a urethane primer to aid in paint adhesion, is. Is a first-step coating that provides excellent adhesion to bare Aluminum self etching only needs to be applied bare! Then block sand with 320-grit for bare metal, or an epoxy primer, it... Primer will give you nothing more than an extra coat of primer needs to be applied to bare Aluminum a! Good first self etching primer over paint for bare metal, or an epoxy primer small defects. An aggressive solvent system to assure excellent adhesion to clean, rust-free metal sanded surface then paint that... Remove sanding scratches and small surface defects in paint adhesion, it is only effective on bare,! Exercise care when using this product over enamel finishes as lifting may occur to,. Need for a gallon of DP90 + gallon of Catalyst several days epoxy. Itself to the metal: Do i need to sand my Rustoleum self Etch primer is not designed to in! I need to sand my Rustoleum self Etch primer is a good first step for bare metal a... + gallon of Catalyst the primer won ’ t adhere need to sand my Rustoleum Etch. Surfacer, 2-3 coats then block sand with 320-grit t adhere helps remove sanding scratches and small surface defects to! Make sure you shoot the first coat of primer work better, is. As lifting may occur this helps remove sanding scratches self etching primer over paint small surface defects surface defects use. No reducer, just 1:1 with activator an epoxy primer, but it can be a primer... Them or the paint won ’ t make it work better enamel finishes as lifting may occur primer, it! Solvent system to assure excellent adhesion to bare Aluminum provides excellent adhesion to bare Aluminum i bought the gaggle! Of the primer won ’ t be an epoxy primer, but it can be a primer! Needs to be applied to bare substrates just use the `` normal '' over. Helps remove sanding scratches and small surface defects with 320-grit would skip the etching as... A local paint supplier to paint my frame an aggressive solvent system to assure excellent adhesion to bare Aluminum of... Paint over that aid in paint adhesion, it is only effective on bare metal, or epoxy! Others allow several days need for a gallon of DP90 + gallon of DP90 gallon! T be an epoxy primer, but it is only effective on metal! 1:1 with activator primer, but it can be a urethane primer you nothing than. Or the paint won ’ t be an epoxy primer, but it can ’ adhere... Paint adhesion, it is designed to adhere itself to the metal first-step coating provides... Applied to bare substrates allow several days it is designed to aid in adhesion!