Go Back  The Hull Truth - Boating and Fishing Forum > BOATING FORUMS > The Boating Forum
Reload this Page >

Steam-cleaning vinyl to remove mold stains?

The Boating Forum

Steam-cleaning vinyl to remove mold stains?

Old 11-14-2020, 10:32 AM
Senior Member
Thread Starter
Join Date: Feb 2015
Location: Kansas City
Posts: 1,179
Received 324 Likes on 154 Posts
Default Steam-cleaning vinyl to remove mold stains?

As with many older boats that are being used only half the year, my boat has developed some unsightly mold stains on the vinyl.
We've tried just about everything previously suggested (while staying away from too heavily bleach-based products) without much improvement.
I remember seeing a video where someone used a steam cleaner to get those stains off.
Has anyone ever tried that?
Old 11-14-2020, 10:50 AM
Join Date: Apr 2020
Location: Southern Ontario
Posts: 74
Received 29 Likes on 18 Posts

I once used a steam cleaner with a small scrubbing attachment to clean mold stains on the canvas interior of an old pop up trailer. It actually worked quite well.

The only problem was water condensation from the steam, which would keep dripping over, due to the location of the stains, so I'd have to stop frequently and wipe the condensed water with a rag. But I won't see that being an issue for boat upholstery (if that's the area that you intend to clean).
Old 11-14-2020, 11:30 AM
Junior Member
Join Date: Apr 2016
Posts: 9
Likes: 0
Received 6 Likes on 5 Posts

I know on cushions you shouldn't do this as if you get water from the cleaner thru the cover into the padding, you will just get mold on the inside. For cushions we brought them to a mobile carpet cleaning person, who did a fantastic job for very little money.
Old 11-14-2020, 11:41 AM
Senior Member
fireisland1's Avatar
Join Date: Jun 2011
Posts: 6,005
Received 3,298 Likes on 1,445 Posts

If t is surface , mold that can be cleaned away steam works great. If it is under the surface then no good. You will push the mold in deeper and wet the inside of the vinyl. Mold will be actually very happy and grow stronger

Old 11-14-2020, 01:34 PM
Senior Member
Thread Starter
Join Date: Feb 2015
Location: Kansas City
Posts: 1,179
Received 324 Likes on 154 Posts

Good info, thank you.
So to give a little more detail, these are little circular mold stains on the vinyl. We have used some bleach products (away from the seams) which killed the mold; it has not been growing for the last 18 months. It just left dark grey stains that we have not been able to remove.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.