Standard glass-cloth envelope
Supports clean handling, cutting and manipulation around the reviewed geometry.
Stitched flexible microporous panel
SilthermQuilt
Stitched microporous insulation for pipes, curved surfaces and irregular shapes.
Siltherm Quilt places a reinforced microporous core inside a stitched glass-cloth envelope. The stitch pattern lets the panel follow pipes and irregular equipment.
Panel size1000 x 600 mm
Thickness range3-12.5 mm
Stitch pitch25 x 25 / 50 x 50 / 100 x 100 mm
Classification temperature1000 C
Stitch architecture
Select the stitch pattern for the required geometry.
The stitch direction controls how the panel bends. One direction suits simple curves; two directions allow more complex shaping.
One direction
Follow a simple cylindrical route.
Parallel stitch lines allow the panel to be manipulated around reviewed pipe and duct geometries while retaining a clean glass-cloth envelope.
Pipe / duct / simple curveAvailable stitching pitches include 25 x 25, 50 x 50 and 100 x 100 mm, with direction and spacing selected to suit the intended geometry and handling needs.
Envelope and moisture boundary
Treat water and condensation as selection inputs.
The standard product uses a glass-cloth envelope. A hydrophobic grade is available where moisture exposure needs to be considered.
Hydrophobic grade available
A grade option for conditions where water or condensation risk belongs in the design brief.
Complete system review
Weatherproofing, drainage, jacketing, joints and inspection remain system-level responsibilities.
A hydrophobic grade is available for applications where moisture exposure is a consideration. The surrounding insulation and protection system should be designed for the actual service conditions.
Cutting, fixing and edge control
Define cutting, fixing and edge treatment before installation.
Siltherm Quilt can be cut and fixed with conventional methods. Align the stitch direction with the curve before laying out seams and fixing points.
Cut
Use a sharp knife or cutter for the reviewed panel geometry.
Position
Align stitch direction with the intended bend, twist and surface transition.
Fix
Review glue, retaining pins or anchors, straps, or wire against the assembly.
Seal
Seal cut edges with glass-fibre tape or aluminium self-adhesive tape where required.
Geometry-led application routes
Start from the shape of the protected route.
Siltherm Quilt is intended for the curved and irregular equipment routes below. Select the grade and stitch pattern for the duty.
01
Continuous cylindrical routes
Discuss a piping route02Process and steam piping
Pipes, hot-air routes and concentrated-solar piping where the insulation follows a defined curve.
Local changes and removable systems
Discuss a complex route03Supports, valves and flexible joints
Hot pipe supports, flexible ball joints and inner cores for reviewed removable jacketing systems.
Industrial heat routes
Open iron and steel04Iron and steel equipment
Tuyere stocks, recuperators, hot-air piping, ducts, pipes, vessels and removable cable-protection cores.
Transport and vessel interfaces
Open aluminium05Heat shields, exhausts and transport vessels
Flexible Quilt formats can follow transportation heat shields, exhaust systems and road-transport vessel surfaces where the geometry and protection arrangement are defined.
Defined protection assemblies
Review the protection systemFire-protection contexts
Jet-fire systems, barriers, shutters, electric cables, air ducts and curtains remain complete-assembly questions.
Technical documentation
Product data for the selected Quilt configuration.
Product grade and stitch pattern are coordinated around the equipment geometry. Jacketing and moisture protection follow the service conditions.
Review the high-temperature systemDocumentSiltherm Quilt Product Data Sheet
Current revisionJuly 2025
Standard size1000 x 600 mm
Standard thickness3-12.5 mm
Thermal dataAvailable with applicable test conditions
Application discussion
Share the surface, transitions and service conditions.
Tell us the equipment type, operating temperature and shape. Also let us know whether the insulation must be removable.
Discuss a Quilt applicationDo not include proprietary drawings or confidential construction details in the initial enquiry.