Sand blasting's effect on finish?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

crawdad · 10-01-2004, 01:18 PM

I haven't done any body restoration yet, but I remember a long time ago, I had some parts on another truck of mine sand blasted. They were hidden parts and I painted them with a can, but when I finished, the part was not glossy. It was more a satin finish than anything else. A friend of mine said it was because of the sand blasting. Is he right about that? Does sand blasting cause a part to be dull in finish as opposed to one that has just been sanded? Maybe I didn't paint it right or used the wrong paint...I don't know.

**Classic Heartbeat** · 10-01-2004, 01:27 PM

Sand blasting itself will not cause that problem unless you do not prepair the surface for paint. In other words shoot paint strait on the metal without priming it first. I etch prim, seal prime and then sand prime the surface befor I paint it. I sand the last coat of primer befor you paint with 1000 grit wet dry to level the surface out befor I paint. WES www.ClassicHeartbeat.com

silvertonguedevil · 10-01-2004, 07:42 PM

Sand blasting body panels is not a real good idea. It can cause the panel to warp or can cause pitting. If it is something you must do, make sure you turn the pressures way down.

wHATANERD · 10-03-2004, 02:43 AM

I heard of people using blasting material made of pecan shells, since the wood partical don't conduct heat they don't cause warping. Probaly expensive though.

71-longbed · 10-03-2004, 03:05 AM

Wes .. can you recommend a good brand of etching and sealing primer ???

thanks

10-01-2004, 01:18 PM	#1
crawdad Senior Member Join Date: Sep 2004 Location: Georgia Posts: 614	Sand blasting's effect on finish?? I haven't done any body restoration yet, but I remember a long time ago, I had some parts on another truck of mine sand blasted. They were hidden parts and I painted them with a can, but when I finished, the part was not glossy. It was more a satin finish than anything else. A friend of mine said it was because of the sand blasting. Is he right about that? Does sand blasting cause a part to be dull in finish as opposed to one that has just been sanded? Maybe I didn't paint it right or used the wrong paint...I don't know. __________________ 2012 Silverado LT 1500, 5.3, 6 speed auto '86 SWB C-10 Silverado

10-01-2004, 01:27 PM	#2
Classic Heartbeat Project Junkie! Fishing Poor!! Join Date: Dec 1999 Location: Olympia,Wa. 98512 Posts: 10,770	Sand blasting itself will not cause that problem unless you do not prepair the surface for paint. In other words shoot paint strait on the metal without priming it first. I etch prim, seal prime and then sand prime the surface befor I paint it. I sand the last coat of primer befor you paint with 1000 grit wet dry to level the surface out befor I paint. WES www.ClassicHeartbeat.com __________________ On-line catolog Classic Heartbeat Pickup Parts WEHEPP@comcast.net Call us Toll Free (888) 338-2502 Like Us on Facebook No appointment necessary. 72 BB Chevy Custom Deluxe / Custom Camper 67 I-6 (Soon to be 5.7 LS1) Panel 68 BB Chevy Short Bed 72 6.0 LQ9 Short Bed Chevy 4X4 Olympia's fastest growing truck parts supplier. Olympia's home for Wayward Chevys

10-01-2004, 07:42 PM	#3
silvertonguedevil Senior Member Join Date: May 2004 Location: Seaside, Oregon Posts: 1,789	Sand blasting body panels is not a real good idea. It can cause the panel to warp or can cause pitting. If it is something you must do, make sure you turn the pressures way down. __________________ -Greg My Chevy trucks, past and present: 1962 C10 SB Fleetside 1964 C10 LB Fleetside BBW 1966 C10 SB Fleetside 1966 C10 SB Fleetside BBW 1968 C10 SB Fleetside 1971 C10 LB Fleetside 1971 C10 SB Fleetside 1972 C10 SB Fleetside Cheyenne 1972 C10 SB Fleetside Cheyenne Super 1972 C10 LB Fleetside Cheyenne Super 1974 C20 Cheyenne 1979 K5 Blazer Cheyenne 1982 K10 SB Fleetside Custom Deluxe 1982 K10 SB Fleetside Scottsdale 1986 C10 SB Fleetside Silverado 2008 Silverado 1500 4x4

10-03-2004, 02:43 AM	#4
wHATANERD Registered User Join Date: Mar 2003 Location: Uvalde, Tx Posts: 407	media blasting I heard of people using blasting material made of pecan shells, since the wood partical don't conduct heat they don't cause warping. Probaly expensive though. __________________ 1969 C/10 Longbed undergoing rebuild. Old Chevy's Never Die, They Just Rust Around The Edges

10-03-2004, 03:05 AM	#5
71-longbed Its Magically Delicious Join Date: Jan 2003 Location: oregon Posts: 2,398	Wes .. can you recommend a good brand of etching and sealing primer ??? thanks __________________ 71 C10 LWB 350sbc -TH350 12 bolt 3.42 Posi Of all my favorite things to do, The utmost is to have a brew. My love grows for my foamy friend, with each thirst-quenching elbow bend. Beer so frosty, smooth, and cold it's paradise pure liquid gold. Yes beer means many things to me that's all for now cus I gotta pee.



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