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Free Saturday Delivery on orders over £75

Product Details

For use with hot and cold water (non-potable duties), natural gas and low pressure steam.

Technical Specification
Brand Boss
Colour by dominance White
Colour by dominance White
Manufacture ID 50060113
Safety Data Sheet click here
Delivery details
Order value: Under £10 £10 & over
Express usually Next Business Day before 6pm £5 Free
Turbo usually Next Business Day before 12 noon £10 £5
Remote areas standard delivery (2-4 days) £5 Free
Order Value: Under £25 Over £25 but less than £75 £75 & Over
£10 £5 Free

Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

More about Delivery & Returns
Click & Collect details
If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 5 minutes later.
  • Ensure you check stock is available for collection at your chosen branch.
  • Check branch opening hours to ensure you have sufficient time to collect.
  • For items not available for same day collection, place order before 9pm Mon-Fri (4pm Sun) and you can collect Next Business Day (Mon-Fri) after 3pm.
  • If we have your mobile number, we’ll send you a text when your order is ready to collect.
Boss White 400g is rated 4.9 out of 5 by 20.
Rated 5 out of 5 by from Quicker than PTFE tape! Can’t imagine a threaded compression joint without it!
Date published: 2020-01-08
Rated 5 out of 5 by from Great stuff Great stuff works well and well priced
Date published: 2019-12-04
Rated 5 out of 5 by from Boss white does the trick I had a problem with a weeping joint from the toilet cistern, inlet fill valve. Could not tighten the nut enough to seal the joint to the bottom of the cistern (hole) properly. Tried silicon sealer but failed. Boss white did the trick. Great stuff.
Date published: 2019-11-28
Rated 5 out of 5 by from Dont start a plumbing job without Boss White I had a slight weep from a compression fitting. Annoying to say the least. I discovered Boss White on the net. Bought a tub from Tool Station, followed the instructions, stir the paste until its a smooth paste, broke the joint, left the original olive, dried the pipework and put the Boss White on the pipework, reassembled the joint and no more leak, instantly dry! So simple when you have the right products.
Date published: 2019-11-06
Rated 5 out of 5 by from Boss White 400g Boss White 400g Stop leaks on fittings
Date published: 2019-10-26
Rated 5 out of 5 by from Great old fashioned efficiency Very good product no leaks no problem
Date published: 2019-10-18
Rated 5 out of 5 by from Nostalgia? Well sort of. Boss White, good old fashioned product as good as it was in the 60's. Nice that elf and safety haven't messed with it too much. Get some!
Date published: 2019-07-09
Rated 4 out of 5 by from Good product for joints. Lower cost alternative jointing compound for DIY use. Easy to use and worked immediately. Would recommend.
Date published: 2019-06-16
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