Three-quarter view of a cleanroom joint sealant cartridge with application nozzle

Cleanroom Installation Accessories

Cleanroom Sealant

A smooth, elastic joint sealant for closing cleanroom panel junctions and perimeter gaps without creating dirt-catching recesses.

Low-Emission Chemistry
Smooth Hygienic Finish
Elastic Airtight Joint
Cleaning-Agent Resistance

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Product Introduction

Cleanroom sealant is a one-component moisture-curing polymer supplied in cartridges for controlled application along wall-panel seams, ceiling junctions, frames and service penetrations. Its non-sag body holds a shaped bead on vertical and overhead joints, while the cured elastomer accommodates small movements between dissimilar substrates. A fine, continuous surface reduces ledges where residue can collect and allows routine wipe-down around the sealed transition.

Key Features

A non-sag consistency supports controlled beads on vertical wall and overhead ceiling joints.

Elastic curing accommodates normal differential movement between coated steel, aluminum and adjacent finishes.

The tooled surface forms a continuous transition with fewer recesses for dust and cleaning residue.

Low-odor, low-emission formulations are available for sensitive controlled interiors.

Customer Product Concerns

A cleanroom joint must remain airtight and cleanable while adjoining panels and frames move slightly in service.

Rigid fillers crack when metal panels and frames expand at different rates.The cured elastomer stretches and recovers across normal joint movement instead of forming a brittle bridge.

Rough beads retain dust and resist complete wipe-down.Controlled extrusion and tooling create a fine, continuous hygienic surface.

Poor adhesion opens bypass paths at coated metal or frame edges.Substrate-specific preparation and compatible primers establish continuous flank adhesion.

Deep joints consume excessive sealant and cure unevenly.A correctly sized backing material controls bead depth and preserves the intended joint profile.

Typical Applications

Cleanroom wall-panel jointsCeiling-to-wall perimetersDoor and window frame interfacesService penetration finishingHygienic floor-to-wall transitions

Technical Parameters

Typical construction and application ranges for a cartridge-applied cleanroom joint sealant are listed below.

Core Material	One-component silane-terminated polymer or polyurethane elastomer
Panel Thickness	2-15 mm recommended cured joint depth
Effective Width	5-30 mm practical joint width
Maximum Length	Up to 12000 mm continuous bead per prepared joint section
Steel Facing Thickness	0.40-1.20 mm compatible coated-steel facing range
Core Density	Approximately 1200-1600 kg/m³ uncured compound density
Thermal Conductivity	Approximately 0.20-0.35 W/(m·K) for cured elastomer
Surface Finish	Smooth tooled matte surface in white, gray or selected hygienic colors
Joint Type	Backer-controlled elastic butt, perimeter or transition joint
Customization	Available based on the intended application and operating environment.

Available Options

White or gray compoundLow-modulus or higher-strength gradeCompatible primer systemCartridge or foil-pack supply

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