Loctite 5990 Premium Silicone Copper Gasket Maker/Sealant



Fitted bundle deal

includes Accessories + Fitting

Item: 599712

Loctite 5990 Premium Silicone Copper Gasket Maker/Sealant


(Unit price: £0 per 100ml)

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  • Description
  • Reviews
  • Buying Options
  • Loctite 5990 Premium Silicone Copper

    The Loctite Ultra Copper Gasket Seal 5990 forms a flexible high temperature silicone seal. It is non corrosive and temperature resistant up to 350 degrees Centigrade.

    Loctite 5990 Premium Silicone Copper Extra Info

    • For flanges with permanent oil contact
    • Can be used for metal, plastic and painted parts
    • Low odour
    • Non-corrosive
    • Meets performance specs of OE silicone gaskets
    • Temperature resistance: -55°C to 350°C intermittent
  • Loctite 5990 Premium Silicone Copper Gasket Maker/Sealant is rated 4.5 out of 5 by 13.
    Rated 5 out of 5 by from Perfect for exhaust This is a nice easy to apply product coming with a little metal spreader tool. Used on Smart cdi after replacing flexi pipe. I used original metal gasket but used this sealant in conjunction to make the perfect joint. Certainly recommended over any exhaust paste that tends to get brittle with age.
    Date published: 2018-02-01
    Rated 4 out of 5 by from Exhaust seal Exhaust leak between turbo and catalytic converter. Removed catalytic converter (joined to diesel particulate filter - Peugeot 307SW), cleaned surfaces sealed with Loctite 5990, rejoined with new clamps. Sealant is rated to 250 centigrade, joint measured at 170 centigrade. 1000 miles, OK so far.
    Date published: 2016-11-18
    Rated 1 out of 5 by from Very bad product I will ask people not to buy this..you can trust me this product is very bad..i just wasted my money on buying this product..it can not stick to together with any particle..its sticking ability is really poor..it just messed up the surface wherever you put it..
    Date published: 2015-10-26
    Rated 5 out of 5 by from Excellent to supplement exhaust gasket I bought this product as the exhaust flange on my motorcycle engine was pitted and, despite trying to polish it, some deeper pits remained. Used it to supplement the exhaust gasket and it worked a treat. No exhaust gas leak at all even after 2000 miles. Strongly recommended.
    Date published: 2015-04-29
    Rated 4 out of 5 by from 1978 Triumph T140v casing e.t.c Used instead of fiddly paper gaskets & as additional sump plug seal with respective copper washers. No leaks after a year. Highly recommend !!!
    Date published: 2015-03-25
    Rated 5 out of 5 by from Oil cooler repair Used this product either side of copper washers at banjo unions on my bikes oil cooler. Superb first time fix!!
    Date published: 2015-02-06
    Rated 5 out of 5 by from Loctite 5920 Worked a treat used on timing chain cover on V8 when rebuilding a competition Drift car
    Date published: 2014-12-28
    Rated 5 out of 5 by from The ONLY exhaust sealant Having tried many various exhaust sealing solutions in the past, I can guarantee that the Loctite 5920/5990 is by far the best. It's superior bonding and heat resistance is fantastic and has NEVER let me down. I highly recommend this product and will myself continue to use it.
    Date published: 2014-12-27
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    • clientName_halfords
  • You can buy this product from one of our carefully selected Approved Partners. The full list of options available are below. Simply add your chosen option to your basket and proceed to checkout when you're ready.

    You can purchase products supplied by Halfords and selected other suppliers on halfords.com.

    Checkout is always via halfords.com and all payment will be taken via halfords.com. In checkout the products will be split into separate deliveries for each supplier.

    Showing 1 - X of our buying options
    Price Seller Info Purchase

Some of the parts we sell here at Halfords have been reconditioned. These will carry a Refundable Deposit or an extra surcharge amount. When you add one of these reconditioned items to your basket, we'll add this extra cost automatically.

Once you've sent us your old item we'll check it over, and then refund you the full surcharge as long as everything is ok.

Before you return your old unit please make sure it's in re-serviceable condition. So if you're returning caliper casings, you'll need to double check they aren't badly damaged or broken. If the part you've sent is found to be unserviceable, we reserve the right not to refund the surcharge.

Please note that if you're returning your old unit to our National Returns Centre then this will be at your own expense.

Loctite Head Gasket & Exhaust Repairs

Loctite 5990 Premium Silicone Copper Gasket Maker/Sealant

£6 Loctite 5990 Premium Silicone Copper Gasket Maker/Sealant a flexible high temperature silicone seal