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Established 1893   |   BS 460:2002 Certified   |   UK & International Supply   |   Expert Technical Support   |   0333 987 4452

Shop / Cast Iron Gutters & Pipes / Cast Iron Gutter & Pipe Accessories / U9 Black Silicone
U9 Black Silicone_cast iron gutter sealant
CODE U9BL Category Cast Iron Gutter & Pipe Accessories

U9 Black Silicone

£12.60 +VAT

Low modulas black silicone for common half round, ogee, deep half round, moulded G46 cast iron guttering and round pipes.

U9 Black Silicone is a low-modulus black silicone sealant formulated for jointing cast iron gutters and pipes. Low-modulus silicone remains flexible after curing, accommodating the thermal expansion and contraction that cast iron guttering undergoes through temperature cycles across the year without the joint cracking or losing adhesion. This flexibility makes it significantly more durable than standard frame or construction silicones on cast iron joints.

Supplied in black to match the standard factory black finish of cast iron gutters and pipes. Compatible with all standard cast iron gutter profiles: common half round, beaded half round, deep half round, moulded ogee, G46 moulded ogee, Notts OG, and No.46 moulded. Also suitable for ogee and moulded gutter joints where a flexible waterproof seal is required. For specification support, call 0333 987 4452.

Additional information

FAQ Categories

  • Cast Iron Airbricks
  • Cast Iron Airvents
  • Cast Iron Hopper Heads
  • Gutter & Pipe Brackets
  • Gutters & Pipes
  • Heating
  • Rooflight Openers
All FAQ
What building types is the School Board Cast Iron Airbrick suited to?

What building types is the School Board Cast Iron Airbrick suited to?

The School Board Airbrick is suited to Victorian and Edwardian terraced housing, mid-century school buildings, civic halls, public baths, and converted institutional buildings. Its plain square-grid face matches the utilitarian aesthetic of late-Victorian construction and is also appropriate for new heritage-style builds in conservation areas.

How do I get a price for a rooflight opener?

How do I get a price for a rooflight opener?

Prices for rooflight openers are shown on the product pages at tuscanfoundry.com. For volume orders, project pricing, or compatibility queries, please call 0333 987 4452 or use the contact form on our website.

How do I get a price for a cast iron hopper head?

How do I get a price for a cast iron hopper head?

Prices vary depending on size and finish. To get a quotation, please call 0333 987 4452 or use the contact form on the Tuscan Foundry website. The team can advise on the right specification for your project and provide a written quote.

What building types is the Iron Works Hit & Miss Vent in Polished Lacquered suited to?

What building types is the Iron Works Hit & Miss Vent in Polished Lacquered suited to?

The Polished Lacquered finish suits buildings where period ironwork was finished bright rather than painted — formal entrance elevations, listed properties, and settings where the grille contributes to the decorative programme of the facade. It is appropriate for conservation specifications and high-specification heritage new build.

Is the Ornamental Airbrick appropriate for a Grade II listed building?

Is the Ornamental Airbrick appropriate for a Grade II listed building?

Yes. The ornamental foliate pattern was widely used in Victorian construction and is appropriate for Grade II listed buildings and conservation area properties. Its decorative character is often preferable to a plain pattern on prominent or formal elevations. We recommend confirming the pattern with your conservation officer as part of any listed building consent application.

What building types is the Regent Cast Iron Hopper Head No.1 (H1) suited to?

What building types is the Regent Cast Iron Hopper Head No.1 (H1) suited to?

The Regent H1 is well suited to Victorian and Edwardian terraces, listed commercial buildings, civic and institutional properties, and ecclesiastical buildings where a traditional funnel-form hopper is architecturally appropriate. Its multi-faceted tapering body reads as period-accurate on Gothic and classical building types alike, and it is a commonly specified choice for conservation and listed building projects across the UK.

My house has a plastic guttering system. Can I use your brackets to replace my exisiting broken ones?

My house has a plastic guttering system. Can I use your brackets to replace my exisiting broken ones?

Our brackets are more commonly used on cast iron rainwater systems. Unlike plastic, cast iron is heavy and the weight keeps the gutter in position. As such our brackets do not normally have retaining clips which could lead to plastic or lightweight gutters blowing out of the bracket. The profile of your gutter should match that of our bracket but without the weight to keep it in place you may well encounter problems in bad weather.

Are ornamental cast iron vents suitable for listed buildings?

Are ornamental cast iron vents suitable for listed buildings?

Yes. Cast iron ornamental vents in period patterns are frequently specified on listed buildings and conservation area properties as like-for-like replacements for original Victorian ironwork. Conservation officers generally accept cast iron in period patterns without objection. We can supply specifications to support planning and listed building consent applications.

What pipe connection sizes do your cast iron hopper heads accept?

What pipe connection sizes do your cast iron hopper heads accept?

The Strayton H42A accepts round, square, and rectangular pipe connections. Round: 65mm, 75mm, and 100mm. Square: 75×75mm, 100×100mm, and 125×125mm. Rectangular: 100×75mm, 125×100mm, and 150×100mm. Please specify your required connection size when ordering.

How do I get a price for a cast iron hopper head?

How do I get a price for a cast iron hopper head?

Prices vary depending on size and finish. To get a quotation, please call 0333 987 4452 or use the contact form on the Tuscan Foundry website. The team can advise on the right specification for your project and provide a written quote.

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Find out more about our products by giving us a call
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