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#1 |
Firefighter
Join Date: Feb 2001
Location: Yellville, Ar, USA
Posts: 1,943
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You guys that have used seam sealers, what type is the best as for as not cracking, shrinking, peeling, and ease to use? Also how good is the brush-on type? And how long has it been with no problems? I got a type from Autozone and it really SUCKS!!! It wasn't 2 days and it started cracking, peeling, and shrinking. It did not remain flexible like the tube said it was supposed to. So now I get to redo it again and I would like to use something that will last. Also did you guys use any type of rust preventitive under it?
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'72 Chevy SWB 350 Auto '67 GMC LWB 350 4 speed '70 Chevy 4x4 Stepside 350 Auto Yellville, Ar. USA ![]() ![]() |
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#2 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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We use 3M Fast and Firm but we put it on in layers, letting it set for a couple of days in between coats. This works ok but if you don't do it this way, the sealant will shrink. This means you cannot paint until all of the shrinking is done. We prime before using Fast and Firm but use the brushable on bare metal. 3M's brushable will shrink, also.
I am not sure what was originally used but it is good stuff! JIm Last edited by JimKshortstep4x4; 10-28-2003 at 08:30 PM. |
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#3 |
Registered User
Join Date: Nov 2002
Location: Haysville, KS
Posts: 118
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Hey guys, Not to step on anyones post, but where is the best place to buy the 3m products?
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I can do all things thru Christ, but he evidently doesn't want me to beat that Camaro light to light.... |
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#4 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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I get my 3M products from the local Autoparts store, but it is also available from the paint suppliers.
Jim |
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#5 |
Registered User
Join Date: Dec 1999
Location: Santee Ca
Posts: 251
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I used 3m automix 8308 heavy bodied seam sealer on my 71 p/u. Idid mine about 4 years ago and havent had a problem. You do need a special gun to apply this sealer. Any paint store that sells 3m products should have it.
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#6 |
Senior Member
![]() Join Date: Oct 2001
Location: Lancaster S.C.
Posts: 4,752
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EightD is on the money,thats what I use and i get it at a automotive paint suplier in the cylinder you use a chaulking gun with. What I do is apply it and wet my index finger and wipe smooth,simple as that!
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Things happen for a reason! |
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#7 |
Registered User
Join Date: Dec 1999
Location: Santee Ca
Posts: 251
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I forgot to tell you to use masking tape on both sides of where you are sealing. then use your finger to smouth the sealer. then remove the tape and smooththe sealer again. I think you will be very happy with it. good luck.
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#8 |
My other Love
Join Date: Aug 2001
Location: Castlegar B.C. Canada
Posts: 4,085
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I have used proform, seam sealer a few times, I am happy with it, didnt shrink much, easy to apply with a caulk gun, and it was sticky as heck
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#9 |
Registered User
Join Date: Aug 2001
Location: pell city,AL
Posts: 263
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smooth it out with laquer thinner, put a laytex glove on, you will wipe most of it off. after I smoothed it out I sprayed the thinner over the sealer and you would of swore I sanded it.
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#10 |
Registered User
Join Date: Nov 2000
Location: Huntsville Ontario Canada
Posts: 4,052
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GM still sells the original stuff.It's the same product they are using in there production Cars and Trucks today. That is what I used really good stuff. Just ask the part's Dude.
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1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD |
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#11 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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The local Chevrolet dealership, (parts dude), told me that GM does not have sealer in a tube. They do have strip sealer, which is very expensive, ($70 for a small box). He told me their body shop uses 3M sealers.
Jim |
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#12 |
Registered User
Join Date: Nov 2000
Location: Huntsville Ontario Canada
Posts: 4,052
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I will find the part number tommorow.
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1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD |
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#13 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Thanks!
Jim |
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#14 |
Firefighter
Join Date: Feb 2001
Location: Yellville, Ar, USA
Posts: 1,943
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Any other thoughts or suggestions?
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'72 Chevy SWB 350 Auto '67 GMC LWB 350 4 speed '70 Chevy 4x4 Stepside 350 Auto Yellville, Ar. USA ![]() ![]() |
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#15 |
Back in the sticks
Join Date: Jan 2001
Location: Fordland, MO
Posts: 3,188
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Do you guys use the same stuff for like around the windshield where the panels come together? Does it eventually harden and seal around there? Thanks, Jeff.
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1971 Cheyenne C-10 w/700R4 and Tuned Port Injection 1969 K5 Blazer w/Tuned Port 2010 2SS/RS Flaming Orange Camaro 2011 K1500 Suburban 2014 K1500 Pickup 2008 Nissan Altima? The wifes' hoopty |
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#16 |
PROJECT 7DEUCE
![]() Join Date: Dec 2002
Location: GRANTS PASS OR
Posts: 21,608
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I have used the 3-m stuff in the past and it worked well no shrinkage or crack's as of yet...
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GO BIG GREEN ![]() MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P.. |
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#17 |
Registered User
Join Date: Jan 2003
Location: Washington State
Posts: 8,834
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What temp is best to apply sealer.......?
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1970 Chev CST 2003 Harley Fatboy 1975 Chevrolet Step Van 1956 Chev Bel Air 1977 Blazer 2WD For Sale $3000.00 1978 Blazer 2WD For Sale $7000.00 1978 Silverado 2005 Monte Carlo |
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#18 | |
Born To Lose Club
![]() Join Date: Feb 2003
Location: Calgary, Alberta/Oxenden, Ontario, Great White North
Posts: 13,306
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Quote:
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Brian Smith ![]() 1969 Chevrolet K10 LWB Fleetside - Proud Owner For 20 Yrs - 1 of 208 Built & Sold In Canada! - 283 V8/350TH/NP208, 2" All Spring Lift, 32" Good Year MT/R's. 1972 GMC K2500 Custom LWB Fleetside - Proud Owner For 2 Yrs - 1 of 571 Built & Sold In Canada! - 350 V8/SM465/NP205, 4” Rough Country Lift, 33” Interco TSL Thornbirds 2007.5 GMC Sierra SLE 2500HD 4x4 - Proud Owner For 15 Yrs - 6.6L V8 Duramax Diesel/Allison 1000, 2" Lift, 33" Mickey Thompson MTZ's. 2008 Yamaha Raptor 700r - Proud Owner For 13 Yrs - ITP Mud Lites. 2015 John Deere 1025R - Proud Owner For 6 Yrs - 24HP Diesel/H120/54D/260B/SB1154. |
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#19 |
Firefighter
Join Date: Feb 2001
Location: Yellville, Ar, USA
Posts: 1,943
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__________________
'72 Chevy SWB 350 Auto '67 GMC LWB 350 4 speed '70 Chevy 4x4 Stepside 350 Auto Yellville, Ar. USA ![]() ![]() |
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#20 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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We tried the tip on using lacquer it it works for us. It will take the primer off which may or may not be a problem.
Jim |
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