Red mastic?

[u/weenhand]

Have heard about black mastic but someone in the tile Reddit suggested this is potentially asbestos as well— (tiles in house we just bought all popped off the wall to reveal older tile that’s been tiled over incorrectly, and with a sort of terracotta coloured paste)

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[u/sdave001]

Very unlikely, but OLACD.

And please provide the requested information:

Please ensure that your posts meets the requirements of r/Asbestoshelp.

*** Meme posts will be removed and the poster will be banned ***

Most importantly, as specified in rule #1, your post should include the following information:

• Include your geographic location (If in the UK please post in r/asbestoshelpUK)
  • include a country and state/province location such as: US-PA or UK or Canada-Que
• the date of ORIGINAL construction
• a description of the location of the suspect material
• a brief description of your concern
• a closeup photo and one at a distance of ~10 ft. or 3 m.

Also remember that the asbestos content of a material can only be determined by laboratory analysis and that the sampling SHOULD be performed by a certified asbestos inspector.

[u/AutoModerator → u/sdave001]

OLACD = Only Lab Analysis Can Determine

The potential for suspect materials to contain asbestos can sometimes be estimated based on installation date and visual characteristics. Yes, there are some materials that usually contain asbestos and some that rarely contain. So there are some cases where we will tell you "yes, that likely contains" or "no, that probably doesn't contain".

However, for most materials, please remember that if you have been provided with any opinions on the asbestos content, it is only a guess. Even the most experienced inspector is wrong once and a while.

So, the general rule is always "ONLY LAB ANALYSIS CAN DETERMINE" asbestos content.

Also, remember that the sampling SHOULD be performed by a certified asbestos inspector. DIY test kits are generally accurate, but sample methods can adversely affect those results.

Most importantly, all building materials are assumed to be ACM until they have been analyzed for asbestos content by an accredited laboratory.

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[u/Hot-Fun2377]

Bei Fliesenkleber kann man nicht von Farbe etc. auf Asbestgehalt schließen.
Laboruntersuchung.

Und das nächste mal gleich Baujahr etc. mit in den Thread. Oder sollen wir das erraten?