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Thermalight blocks


single barrel
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A friend has just got he’s firearms license and now needs to fit his own gun cabinet, the lives in a new build and all the walls are dot and dab plasterboard with thermalight blocks behind, is it possible to get a good fix to these block and what is the best product to use to achieve a pass from the firearms officer, ?? Thanks in advance

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2 minutes ago, single barrel said:

A friend has just got he’s firearms license and now needs to fit his own gun cabinet, the lives in a new build and all the walls are dot and dab plasterboard with thermalight blocks behind, is it possible to get a good fix to these block and what is the best product to use to achieve a pass from the firearms officer, ?? Thanks in advance

He will need to use an expanding bolt type which will expand just as well in thermalite as it would in a concrete block, just stay away from the edges as it will burst the block. Or he can use a resin anchor.

 

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It's quite difficult in my opinion (been a builder over 15 years).

They probably wouldn't know it's thermalite blocks from a visual inspection but it wouldn't really be in the spirit of the law.

 

You might be able to get a decent fixing if you glue threaded rod in to the blocks. But you've still got a gap behind the boards. They would be to be cut back to the block imho.

This stuff is okay for the price and you only need a normal caulk gun.

The other thing I would say is that if you use something like stixall or CT1 in addition to the rods/bolts to actually glue the cabinet to the block with you would really struggle to get it off but the feo might not accept it.

 

The problem with thermalite is that even if you get a decent fixing in reality a crow bar will actually damage the block if you try to lever anything. I guess it has to last 5 minutes. 

Screenshot_2024-02-18-20-00-37-360_com.screwfix.shoppingapp.jpg

Edited by NF-fuse
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I had mine inspected once and it was only held in by 1” screws 😂. They thought it was solid. To be honest it was on the day of moving in and i chemical fixed it the next day . 
moving on 20 years and I’ve chemical anchored my new 2 cabinets in and that stuff is amazing . Don’t use expansion bolts just use the resin anchor . 
 

 

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20 minutes ago, team tractor said:

I had mine inspected once and it was only held in by 1” screws 😂. They thought it was solid. To be honest it was on the day of moving in and i chemical fixed it the next day . 
moving on 20 years and I’ve chemical anchored my new 2 cabinets in and that stuff is amazing . Don’t use expansion bolts just use the resin anchor . 
 

 

I used a tube of Sikaflex 521 on mine, my cabinets staying stuck to the house, it aint going anywhere. 

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9 minutes ago, steve1066 said:

Bet you wished you hadn’t asked now😂

 

Oh and by the way you can use expanding bolts, I use them at least once a week for securing metal purlins in roof spaces when fitting sprinkler tanks that can weight up to several tonnes when full. Most people think of expanding bolts as the old shield type but technology has moved on since those.

We use Fisher Aircrete anchor FPX-I, not cheap but work first time every time.

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12 hours ago, steve1066 said:

Oh and by the way you can use expanding bolts, I use them at least once a week for securing metal purlins in roof spaces when fitting sprinkler tanks that can weight up to several tonnes when full. Most people think of expanding bolts as the old shield type but technology has moved on since those.

We use Fisher Aircrete anchor FPX-I, not cheap but work first time every time.

those anchors are specifically made for aerated concrete.

the expanding anchors i was referring to are the sleeve/rawl wedge type that get supplied with new cabinets such as the Brattonsound range.

Edited by Zoli 12 guage
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7 hours ago, Zoli 12 guage said:

those anchors are specifically made for aerated concrete.

the expanding anchors i was referring to are the sleeve/rawl wedge type that get supplied with new cabinets such as the Brattonsound range.

Totally agree any shield type expanding bolt may cause damage. But there are many types of expanding anchor that are not shield type.

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I had the exact same problem of Themalite blocks and a gun cabinet fixing requirement - went to a fastener specialist and was recommended to use Excalibur Screw-bolts:

https://www.excaliburscrewbolts.com/

One drills a hole to the size of the shaft of the bolt and just screw the bolt in - it cuts it's own thread into the material.   The FAO came to do the inspection and was amazed - couldn't rock or budge the cabinet at all - signed it off and went away with the above URL on a bit of paper.

They are also used to mount TV wall brackets apparently.

 

 

 

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