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Seamsil 300 Gutter Joint System

Verified by manufacturer 6 months ago

HD Sharman Ltd.

Gutter joint repair system.

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+44 (0)1298 812371 Website

Application

Suitable for use with steel, cast iron, asbestos cement and concrete gutter joints.

Description

A gutter joint repair system using Seamsil sealant and base coat.


Features and benefits:

  • Weather and ultraviolet (UV) resistant.
  • Proven corrosion resistance.
  • Encapsulates the damaged area to restrict further deterioration.
  • Water repellent seal.
  • Primer-less adhesion.
  • Remains tough and flexible, and is designed to withstand normal surface movement, ensuring continued optimum performance even in aggressive environments.
  • Dry film thickness (complete system): Minimum 350 microns.
  • Long life protection in elasticity and encapsulation.
  • Silicone systems do not degrade by chalking and do not have self-cleaning properties.


System components and installation application:

  • Sharman's Barrier Primer: Bitumen and other volatile materials must be removed. Any remaining residue must be primed with Sharman's Barrier Primer.
  • Seamsil sealant (at overlaps): Seamsil® Sealant is gun-applied into the joint of the gutter and around the base of the bolts/fixings forming a complete bridged seal.
  • Seamsil base and top coats: Whilst the Seamsil® Sealant is still wet, apply Seamsil® Base Coat by brush at a minimum wet film thickness of 220 microns. Allow to cure to a tack free state. Seamsil® Base Coat should be applied at least 25 mm either side of the gutter joint, ensuring complete coverage of the joint and bolts/fixings.

  

Seamsil base and top coats:

  • Chemical base: Silicone coating in a spirit carrier.
  • Specific gravity: 1.22.
  • Shore A Hardness: 20 (approximately).
  • Dry film thickness: Complete system – 350 microns (minimum).
  • Time to full cure: 10–14 days.
  • Solids content: By volume – 80%.
  • Movement accommodation: ±50%.
  • Elongation at break: 750%.
  • Tensile strength: 1.6 N/mm².
  • Application temperature: 3–60°C.
  • Dew point: Surface to be 2°C above the dew point.


Seamsil sealant:

  • Chemical base: Alkoxy silicone, room temperature vulcanizing.
  • Colour: Grey.
  • Specific gravity 1.39.
  • Shore A Hardness: 20 (approximately).
  • Time to full cure: 10–14 days.
  • Movement accommodation: ±50%.
  • Elongation at break: 700%.
  • Tensile strength: 1.6 N/mm².
  • Application temperature: 3–60°C.
  • Dew point: Surface to be 2°C above the dew point.

General information

Color

Grey

Finish

Coated

Material

Silicone

Shape

Formless

Guidance for specification option:

Liquid applied coating.

Length

Bespoke

Width

Bespoke

Height

Bespoke

Warranty description

One year

Guidance for specification option:

  • System material components are fully guaranteed to perform in line with manufacturer specification for the duration of the guarantee. If there is a failure of the system material components, manufacturer will repair or replace as appropriate at no cost.
  • Correct installation/ application methodologies prescribed by the manufacturer are critical to the lifetime performance of the gutter and roof refurbishment systems. The manufacturer Approved Contractor Network receive comprehensive survey and installation training at one of two purpose built training centres. Following review and approval by the manufacturer Technical Team, the Guarantee is issued.

Uniclass

Pr_30_31_76_77 Silicone construction joint sealantsPrimary

CAWS

R10/12 Cast iron gutters

H30/530 Fibre cement gutters

H30/10 Fibre cement

R10/315 Cast iron gutters

R10/335 Galvanized steel gutters

Specification data - Silicone construction joint sealants

Material

Alkoxy silicone.

Colour

Grey.

Sustainability data

Contains Red List materials

No

Country of material origin

United States

Country of product manufacture

United Kingdom

Literature

Seamsil 300 gutter Joints

Seamsil 300 gutter Joints

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