Clean It Up

UK General Cleaning Forum => General Cleaning Forum => Topic started by: stevie wonder on May 15, 2008, 06:43:47 pm

Title: black tree sap
Post by: stevie wonder on May 15, 2008, 06:43:47 pm

I just finished a york stone patio,dirt came off really easily with my surface cleaner,but there is loads of black tree sap . Ive tried acid and prochem stone cleaner,but the sap wont budge.Any ideas.Steve.

Title: Re: black tree sap
Post by: trevor perry on May 15, 2008, 10:13:25 pm

bleach or algon

Title: Re: black tree sap
Post by: drivewasher on May 17, 2008, 09:58:05 am

Have you tried a wipe with xylene as the sap is basically a resin

Title: Re: black tree sap
Post by: rob fryer on May 17, 2008, 07:11:04 pm

When i used to clean cars for a living the only thing which would remove sap of paintwork was cellelose thiners this will break down with water

Title: Re: black tree sap
Post by: drive surgeon on May 20, 2008, 05:46:59 pm

is it sap or lichen?  lichen is the black dots that cover blockpaving and flags? ???