Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

 
 Reply to this topicStart new topic
> Backpad repair
daytona
post Jul 8 2017, 06:26 PM
Post #1


daytona
**

Group: Members
Posts: 464
Joined: 13-April 14
From: Ormond Beach, Florida
Member No.: 17,249
Region Association: South East States
Hi, I have a backpad that needs repair (some water damage, tears, cracks, etc...).
Anybody have any ideas on repairs to the fiber board?
I have tried to search the forum but could not find threads on repairing the backpad.
Thanks,
Bill.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ConeDodger
post Jul 8 2017, 07:36 PM
Post #2


Apex killer!
***************

Group: Members
Posts: 24,000
Joined: 31-December 04
From: Tahoe Area
Member No.: 3,380
Region Association: Northern California
My best idea? Don't...

Check 914Rubbers fiberglass backpad and backpad vinyl.

Looks like this when it's in:


Attached image(s)
Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Tom_T
post Jul 8 2017, 08:32 PM
Post #3


TMI....
*****

Group: Members
Posts: 8,321
Joined: 19-March 09
From: Orange, CA
Member No.: 10,181
Region Association: Southern California
QUOTE(ConeDodger @ Jul 8 2017, 06:36 PM) *

My best idea? Don't...

Check 914Rubbers fiberglass backpad and backpad vinyl.

Looks like this when it's in:

(IMG:style_emoticons/default/agree.gif) ... with Rob!

Even if you keep your own fabric & foam materials, & just put it on the 914Rubber fiberglass backpad panels, it will be better than the water damaged OE fiberboard.

If you need to be super low cost, then go to the local Home Depot or other DIY & get some 2 part resin or epoxy to try to repair the water damaged areas. You may need to cut away substantial amounts of the funky fiber layers that are water damaged, so you then have to lay in fresh fiberglass cloth &/or paperboard to build it back up. It will still be funky though.

I did this on the 2 small corners of a door card on one of my cars, but I don't recommend it for large areas.

Good Luck! (IMG:style_emoticons/default/beerchug.gif)
(IMG:style_emoticons/default/beerchug.gif)
Tom
///////
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
raynekat
post Jul 8 2017, 08:38 PM
Post #4


Advanced Member
****

Group: Members
Posts: 2,169
Joined: 30-December 14
From: Coeur d'Alene, Idaho
Member No.: 18,263
Region Association: Pacific Northwest
The biggest problem you'll find with the 914 Rubber back pad is that's it's made of fiberglass so staples won't go through it. MPITA. I repaired my fiberboard original the best I could using a fiberglass repair kit but the repairs were not where the staples go. I'll put a couple of pics here in the coming days.

Not saying anything bad about the 914 Rubber part....it's just not easy or straight forward to work with.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ConeDodger
post Jul 8 2017, 08:47 PM
Post #5


Apex killer!
***************

Group: Members
Posts: 24,000
Joined: 31-December 04
From: Tahoe Area
Member No.: 3,380
Region Association: Northern California
QUOTE(raynekat @ Jul 8 2017, 11:38 PM) *

The biggest problem you'll find with the 914 Rubber back pad is that's it's made of fiberglass so staples won't go through it. MPITA. I repaired my fiberboard original the best I could using a fiberglass repair kit but the repairs were not where the staples go. I'll put a couple of pics here in the coming days.

Not saying anything bad about the 914 Rubber part....it's just not easy or straight forward to work with.


I agree but...

I worked with an upholstery shop (and coincidently, now, so is 914Rubber) that made that same suggestion. On mine we attached a tack strip and we sent Mark a sample of it. Look for the next-gen backpad fiberglass to have that improvement.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
porschetub
post Jul 8 2017, 09:43 PM
Post #6


Advanced Member
****

Group: Members
Posts: 4,791
Joined: 25-July 15
From: New Zealand
Member No.: 18,995
Region Association: None
QUOTE(Tom_T @ Jul 9 2017, 02:32 PM) *

QUOTE(ConeDodger @ Jul 8 2017, 06:36 PM) *

My best idea? Don't...

Check 914Rubbers fiberglass backpad and backpad vinyl.

Looks like this when it's in:

(IMG:style_emoticons/default/agree.gif) ... with Rob!

Even if you keep your own fabric & foam materials, & just put it on the 914Rubber fiberglass backpad panels, it will be better than the water damaged OE fiberboard.

If you need to be super low cost, then go to the local Home Depot or other DIY & get some 2 part resin or epoxy to try to repair the water damaged areas. You may need to cut away substantial amounts of the funky fiber layers that are water damaged, so you then have to lay in fresh fiberglass cloth &/or paperboard to build it back up. It will still be funky though.

I did this on the 2 small corners of a door card on one of my cars, but I don't recommend it for large areas.

Good Luck! (IMG:style_emoticons/default/beerchug.gif)
(IMG:style_emoticons/default/beerchug.gif)
Tom
///////


No need to use epoxy,polyester is fine mine came out a treat.
From my pic you see I gave it a resin rich coat to hold the cardboard together,let that dry and sand it back and used surfboard cloth to beef it up,really works but time spent of course.
Attached Image
The main reason for the resin coat is to hold the broken area and provide a way of sanding back the staple ends that have popped through,you need to cut out some broken bits to get the pad back into shape.
Best to use some bondo (bog we call it ) to get a good surface to glass over,be aware it will smell for a few days then it comes right.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
EdwardBlume
post Jul 9 2017, 02:06 AM
Post #7


914 Wizard
**********

Group: Members
Posts: 12,338
Joined: 2-January 03
From: SLO
Member No.: 81
Region Association: Central California
I used bondo and gorilla glue with a 914rubber kit. Even cut some from a donor panel. You'll never see it. (IMG:style_emoticons/default/laugh.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
gereed75
post Jul 9 2017, 04:15 AM
Post #8


Senior Member
***

Group: Members
Posts: 1,342
Joined: 19-March 13
From: Pittsburgh PA
Member No.: 15,674
Region Association: North East States
I have not tackled this job yet but I was thinking that one of the wood rot epoxy products would be the ticket. These products are made to soak into the fibers.

Has Anyone tried that??
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
barefoot
post Jul 9 2017, 06:26 AM
Post #9


Senior Member
***

Group: Members
Posts: 1,363
Joined: 19-March 13
From: Charleston SC
Member No.: 15,673
Region Association: South East States
i did my own repairs on the fiberboard backing using West System epoxy and some
e-glass cloth. I happen to have this stuff around for marine repairs. No photos of the back pad repairs, but I did a repair on pedal board; glass on the backside & carbon on the front:

Attached Image

Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Keith914
post Jul 9 2017, 08:13 AM
Post #10


Member
**

Group: Members
Posts: 248
Joined: 29-April 16
From: Laguna Beach, California 92651
Member No.: 19,948
Region Association: Southern California
I used the 914 Rubber fibre glass boards and glued with 3M upholstery glue and screws with clips in critical areas. I ground off the sharp screw ends and covered with strips of duct tape. I learned the hard way to protect myself from the drill cuttings/dust when working fibre glass!Attached Image Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
daytona
post Jul 9 2017, 02:16 PM
Post #11


daytona
**

Group: Members
Posts: 464
Joined: 13-April 14
From: Ormond Beach, Florida
Member No.: 17,249
Region Association: South East States
Hi guys,
Thanks for all the suggestions and information.
I need to do this on the cheap if I can so I will try the resin and fiberglass first.
Thanks,
Bill.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
saigon71
post Jul 9 2017, 02:56 PM
Post #12


Advanced Member
****

Group: Members
Posts: 2,011
Joined: 1-June 09
From: Dillsburg, PA
Member No.: 10,428
Region Association: MidAtlantic Region
I used the fiberglass cloth & resin method on my lower corners. It worked very well. See post #367.

http://www.914world.com/bbs2/index.php?sho...3957&st=360
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
daytona
post Jul 9 2017, 06:08 PM
Post #13


daytona
**

Group: Members
Posts: 464
Joined: 13-April 14
From: Ormond Beach, Florida
Member No.: 17,249
Region Association: South East States
Thanks for the info saigon71.
Bill.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 21st April 2025 - 02:38 PM
Invision Power Board v9.1.4 © 2025  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...