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
> what to use for silicone remover, mineral spirits NLA in Calif EDIT: solution found.
914 RZ-1
post Feb 20 2018, 05:12 PM
Post #1


Porsche Padawan
***

Group: Members
Posts: 684
Joined: 17-December 14
From: Santa Clarita, CA
Member No.: 18,230
Region Association: Southern California
Mineral spirits are NLA in SoCal. What do you all use to clean off silicone? I've scraped all I can; I need to get the rest off.

Goo Gone supposedly works, but I tried it and it didn't seem to do much. Maybe I have the wrong kind.

I need to remove it from the rear window and from around the rear window frame on the car.

EDIT: I found a solution. I used Motsenbockers Lift-off. It apparently works by loosening the molecular bond. I scraped off as much as I could with a razor. I applied the lift-off. Let it sit for about 3-5 minutes. I was then able to scrub it off with a rag. Took about 3 applications.

The flour just made a mess! The other suggestions did not work for me.

Attached Image

This post has been edited by 914 RZ-1: Mar 11 2018, 08:19 PM
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
MartyYeoman
post Feb 20 2018, 05:42 PM
Post #2


Senior Member
***

Group: Members
Posts: 1,546
Joined: 19-June 03
From: San Ramon, CA
Member No.: 839
Region Association: Northern California
Try charcoal lighter fluid.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
burton73
post Feb 20 2018, 05:57 PM
Post #3


Senior member, and old dude
****

Group: Members
Posts: 3,989
Joined: 2-January 07
From: Los Angeles
Member No.: 7,414
Region Association: Southern California
You have to scrape it. It grabs by capillary action and the shit is really good adhesive.

Take pictures to show us. Do you not want to damage the paint?

Are you going back with new black butyl?

What color is the silicone?

If black why not just put more to put the window back in.

Bob B
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
burton73
post Feb 20 2018, 06:10 PM
Post #4


Senior member, and old dude
****

Group: Members
Posts: 3,989
Joined: 2-January 07
From: Los Angeles
Member No.: 7,414
Region Association: Southern California
Even acetone will not eat it. You have to rub it off. Wire wheel and that kills the paint. It is not you ordinary adhesive
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Nacho
post Feb 20 2018, 06:21 PM
Post #5


Member
**

Group: Members
Posts: 222
Joined: 31-December 16
From: So. California
Member No.: 20,716
Region Association: None
QUOTE(914 RZ-1 @ Feb 20 2018, 06:12 PM) *

Mineral spirits are NLA in SoCal. What do you all use to clean off silicone? I've scraped all I can; I need to get the rest off.

Goo Gone supposedly works, but I tried it and it didn't seem to do much. Maybe I have the wrong kind.

I need to remove it from the rear window and from around the rear window frame on the car.



I just ordered Mineral Spirits from Amazon with no issues delivered to my house in SoCal.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JeffBowlsby
post Feb 20 2018, 07:30 PM
Post #6


914 Wiring Harnesses & Beekeeper
*****

Group: Members
Posts: 9,222
Joined: 7-January 03
From: San Ramon CA
Member No.: 104
Region Association: None
How about using petrol?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
boxstr
post Feb 20 2018, 07:37 PM
Post #7


MEMBER:PACIFIC NORTHWEST REGION
*****

Group: Members
Posts: 7,522
Joined: 25-December 02
From: OREGON
Member No.: 12
Region Association: Pacific Northwest
I have had success using a clear marine type of adhesive. I apply it onto the edge or the rear window, after a thorough cleaning. I did not remove the factory applied silicone seal that is in the rear window track. The adhesive works well and will keep a very tight seal. You do need to use some type of brace to hold the glass in place for at least 24 hours.
Craig at CAMP
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
914 RZ-1
post Feb 20 2018, 10:05 PM
Post #8


Porsche Padawan
***

Group: Members
Posts: 684
Joined: 17-December 14
From: Santa Clarita, CA
Member No.: 18,230
Region Association: Southern California
It's around the rear window area.

I do not want to damage the paint.

Yes, going with black butyl.

Silicone is clear.

QUOTE(burton73 @ Feb 20 2018, 03:57 PM) *

You have to scrape it. It grabs by capillary action and the shit is really good adhesive.

Take pictures to show us. Do you not want to damage the paint?

Are you going back with new black butyl?

What color is the silicone?

If black why not just put more to put the window back in.

Bob B
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
914 RZ-1
post Feb 20 2018, 10:12 PM
Post #9


Porsche Padawan
***

Group: Members
Posts: 684
Joined: 17-December 14
From: Santa Clarita, CA
Member No.: 18,230
Region Association: Southern California
What about any products available at the big box stores like Home Depot?

Like this: https://www.homedepot.com/p/Motsenbockers-1...11-16/202103458

Two of the 5 search results were for scrapers!

I may order some mineral spirits from Amazon. Does it work well? What about the substitutes available in Calif?

What about denatured alcohol?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
burton73
post Feb 20 2018, 10:25 PM
Post #10


Senior member, and old dude
****

Group: Members
Posts: 3,989
Joined: 2-January 07
From: Los Angeles
Member No.: 7,414
Region Association: Southern California
QUOTE(914 RZ-1 @ Feb 20 2018, 08:05 PM) *

It's around the rear window area.

I do not want to damage the paint.

Yes, going with black butyl.

Silicone is clear.

QUOTE(burton73 @ Feb 20 2018, 03:57 PM) *

You have to scrape it. It grabs by capillary action and the shit is really good adhesive.

Take pictures to show us. Do you not want to damage the paint?

Are you going back with new black butyl?

What color is the silicone?

If black why not just put more to put the window back in.

Bob B


As I said Acetone will not thin it and that is hot stuff. I do not think you can remove it with even gasoline. I do not think it will melt away. Use a flat edge and try to cut it off or lower it. It will cut with a fresh razor blade.

I have worked with silicones for molds for 40 years. Pouring them, cutting then with razor blades. Silicone in the form that you have stuck on is an adhesive. When you get that stuff on your hands it does not want t come off. Wiping it with a towel and even then with Acetone it still is on yours hands.

Silicone, like spray silicone is a mold release not and an adhesive like what you have stuck on your car.

Never get spray silicone or products that contains silicone need and thing you want to paint or you will get Fisheyes

Bob B
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
sb914
post Feb 21 2018, 07:08 AM
Post #11


Surf Guru
****

Group: Members
Posts: 4,622
Joined: 25-November 12
From: Brookings,Oregon
Member No.: 15,191
Region Association: Southern California
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Krieger
post Feb 21 2018, 08:56 AM
Post #12


Advanced Member
****

Group: Members
Posts: 4,847
Joined: 24-May 04
From: Santa Rosa CA
Member No.: 2,104
Region Association: None
QUOTE(914 RZ-1 @ Feb 20 2018, 03:12 PM) *

Mineral spirits are NLA in SoCal.


What a bunch of crap!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
76-914
post Feb 21 2018, 09:21 AM
Post #13


Repeat Offender & Resident Subaru Antagonist
**********

Group: Members
Posts: 13,876
Joined: 23-January 09
From: Temecula, CA
Member No.: 9,964
Region Association: Southern California
QUOTE(sb914 @ Feb 21 2018, 05:08 AM) *

Attached Image

What? Hard to believe but I’ll try it next time.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Mueller
post Feb 21 2018, 09:30 AM
Post #14


914 Freak!
***************

Group: Members
Posts: 17,155
Joined: 4-January 03
From: Antioch, CA
Member No.: 87
Region Association: None
QUOTE(Krieger @ Feb 21 2018, 06:56 AM) *

QUOTE(914 RZ-1 @ Feb 20 2018, 03:12 PM) *

Mineral spirits are NLA in SoCal.


What a bunch of crap!



I went looking for some at Lowes, couldn't find any. I was told "brush cleaner" was supposedly the same? They just changed the label according to the salesperson. I don't believe it yet I bought it anyway.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
914 RZ-1
post Mar 4 2018, 09:40 PM
Post #15


Porsche Padawan
***

Group: Members
Posts: 684
Joined: 17-December 14
From: Santa Clarita, CA
Member No.: 18,230
Region Association: Southern California
I found a solution. See first post edit.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
larryM
post Mar 9 2018, 10:40 PM
Post #16


emoze
***

Group: Members
Posts: 891
Joined: 1-January 03
From: mid- California
Member No.: 65
Region Association: Northern California
excellent - thanks for sharing!

QUOTE(914 RZ-1 @ Feb 20 2018, 03:12 PM) *

What do you all use to clean off silicone? I've scraped all I can; I need to get the rest off.

EDIT: I found a solution. I used Motsenbockers Lift-off. It apparently works by loosening the molecular bond. I scraped off as much as I could with a razor. I applied the lift-off. Let it sit for about 3-5 minutes. I was then able to scrub it off with a rag. Took about 3 applications.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
burton73
post Mar 9 2018, 11:00 PM
Post #17


Senior member, and old dude
****

Group: Members
Posts: 3,989
Joined: 2-January 07
From: Los Angeles
Member No.: 7,414
Region Association: Southern California
Thanks for running this down and teaching us.

Bob B
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
76-914
post Mar 10 2018, 02:57 PM
Post #18


Repeat Offender & Resident Subaru Antagonist
**********

Group: Members
Posts: 13,876
Joined: 23-January 09
From: Temecula, CA
Member No.: 9,964
Region Association: Southern California
(IMG:style_emoticons/default/agree.gif) Wish I had known this a couple months back. (IMG:style_emoticons/default/dry.gif) thx
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
amfab
post Mar 11 2018, 12:21 AM
Post #19


Member
**

Group: Members
Posts: 401
Joined: 17-May 16
From: Los Angeles
Member No.: 20,004
Region Association: None
FYI Mineral Spirits is now banned within the South Coast Air Quality Management District.
They are trying to reduce VOCs and are encouraging use of acetone or mixes of stuff with acetone as a substitute. SCAQMD is LA County, Orange County and parts of Riverside and San Bernardino counties.

If I want mineral spirits I now have to go to Ventura or San Diego

I hate them.
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: 2nd April 2026 - 11:24 AM
Invision Power Board v9.1.4 © 2026  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 ...