K-flex K-ROCK ALU mineral wool insulation with aluminum jacket 30 x 42 mm, 1 m bar

K-flex K-ROCK ALU mineral wool insulation with aluminum jacket 30 x 42 mm, 1 m bar is a factory-formed pipe sleeve designed for thermal and acoustic insulation of straight pipe runs and fittings. The product combines mineral wool core properties with an outer aluminum cladding to provide improved moisture resistance and a durable external surface. Supplied as a 1 m bar with a 30 mm inside diameter and 42 mm outside diameter, it is intended for use where non-combustible insulation and mechanical protection are required.

Advantages

The mineral wool core offers effective thermal resistance and sound attenuation while ensuring fire performance inherent to inorganic fibres. The aluminum jacket protects the insulating wool from moisture, dust and minor mechanical damage and facilitates clean, low-maintenance surfaces. Factory-formed geometry ensures a consistent thickness and easy alignment on pipes, reducing installation time compared with loose-fill or site-formed insulation.

Suitable for

• Thermal insulation of HVAC and plumbing pipework
• Acoustic attenuation in mechanical and utility installations
• Applications requiring non-combustible mineral wool insulation
• Industrial piping where a durable external jacket is needed

Key specifications

• Material: mineral wool core with aluminum outer jacket
• Inner diameter: 30 mm
• Outer diameter: 42 mm
• Length: 1 m bar
• Form: pre-formed tubular sleeve for pipes and fittings
• Properties: thermal insulation, acoustic attenuation, moisture-resistant outer cladding, non-combustible core

How to use

Measure the pipe diameter and select the 30 x 42 mm sleeve for compatibility with the intended pipe size. Position the K-flex K-ROCK ALU sleeve along the pipe so the mineral wool fully covers the cylinder of the pipe; for joints, valves or flanges, use appropriately sized pre-formed pieces or cut and fit as required. Secure seams and joints with compatible tape, clamps or specified mechanical fasteners and ensure the aluminum jacket is continuous to maintain moisture protection. For exposed installations, seal transverse joints and end terminations to prevent ingress of dirt and moisture.

Usage recommendations

Install in accordance with local building codes and project specifications. Avoid compressing the mineral wool core during fitting to preserve thermal and acoustic performance. Use compatible sealants and tapes for the aluminum jacket to maintain weather and moisture protection. For elevated fire-safety or high-temperature systems, consult project engineers or manufacturer guidelines to confirm suitability.