Red Rawlplugs

[catlad]

I was told it was finished in 1982

 

[wrightwoodwork]

I was surprised as well here is an extract from hse it was maybe blue but don't know the full in and out. Asbestos is still used in in China Brazil Kazakhstan have the highest usage
Was the building built or refurbished before 2000? If Yes, assume asbestos is present. ■ If No, asbestos is unlikely to be present – no action required. Do you already have information on asbestos in your building? Walk around your building to identify all ACMs or presumed ACMs, including areas not normally visited like roof voids, store rooms etc. ACMs may be present if the building was constructed or refurbished before 2000. All asbestos use was prohibited by 1999. You need to do all that you reasonably can to find them byW

 

[avonmouth]

Still got my rawplug chisel and can make a hole in most things quicker than it takes to go get/set up a drill

 

[Blagard]

To bring this back on track - The issue is a white board is fixed with what appears to be a pozidrive screw and a red plastic wall plug. So we are trying to date the earliest the work could have been done.

So come on guys/girls, when was the pozidrive screw first introduced. All I can find is that it was a Philips development but no dateline.

 

[jeds]

I was told it was finished in 1982

The first ban came in about mid 80s but only covered some of the asbestos types. Chrysotile (the stuff that goes into asbestos cement board) was banned in 1999. So any building after 2000 should (should?) be asbestos free.

Personally I wouldn't use the presence of a plastic rawl plug as an indication. If in any doubt either treat it as if it is asbestos or get a piece tested.

 

[mfarrow]

So come on guys/girls, when was the pozidrive screw first introduced. All I can find is that it was a Philips development but no dateline.

It was patented in 1952 under patent number 2,592,462 in the US. It was used most commonly from the 1960s.

 

[Blagard]

So come on guys/girls, when was the pozidrive screw first introduced. All I can find is that it was a Philips development but no dateline.

It was patented in 1952 under patent number 2,592,462 in the US. It was used most commonly from the 1960s.

Nice try but that was the original Philips cross head not the pozidrive development.

 

[mfarrow]

Philips was the 1930s.

Read the patent.

 

[Burnerman]

The reasoning behind philips screws was the need for mechanised mass production......they don't fall off the drive bit so readily.
John

 

[Blagard]

Philips was the 1930s.

Read the patent.

I must admit I looked at the drawings only.

http://www.phillips-screw.com/timeline.php apparently the pozidrive raised its head (hears the groans!) in 1966 and rights were sold in 1977 so to Elaine - Sorry no joy there!

 

[Elaine78]

Thanks all for your replies... Looks like there's no indicator that it's likely to be a later board then... Nevermind. Thinking of getting a sample taken by a specialist company to put this whole thing to rest and go from there. Don't fancy taking it myself anymore! Thanks again, Elaine

 

[Blagard]

I have come across the web site below - it may be off interest.

http://www.asbestostestingkits.co.uk/