---
title: "Silicone Foam Rubber SM150-FG1"
id: "2996"
type: "product"
slug: "silicone-foam-rubber-sm150-fg1"
published_at: "2026-04-25T07:21:49+00:00"
modified_at: "2026-04-25T07:42:29+00:00"
url: "https://www.sheenmaterials.com/fr/silicone-foam-rubber-sm150-fg1/"
markdown_url: "https://www.sheenmaterials.com/fr/silicone-foam-rubber-sm150-fg1.md"
excerpt: "SM150-FG1 is an ultra-thin two-layer composite material uniformly coated with solid ceramifiable silicone rubber on one side. At room temperature, it retains the elasticity, sealing capability, and processability of silicone rubber. Under high-temperature flames or extreme overheating above 500°C, special..."
taxonomy_product_cat:
  - "Ceramifiable / Fire Barrier Silicone Foam"
  - "Silicone Foam"
taxonomy_product_tag:
  - "Silicone Foam"
  - "solid ceramifiable silicone rubber"
---

[🔍](#)

# Silicone Foam Rubber SM150-FG1

SM150-FG1 is an ultra-thin two-layer composite material uniformly coated with solid ceramifiable silicone rubber on one side. At room temperature, it retains the elasticity, sealing capability, and processability of silicone rubber. Under high-temperature flames or extreme overheating above 500°C, special additives react with the silicone matrix and sinter into a hard, porous ceramic-like crust, helping provide fire resistance, flame retardancy, ablation resistance, and an insulating thermal barrier.

### Principaux avantages

- Ultra-thin two-layer composite structure for space-constrained fire-barrier and sealing applications
- High-temperature ceramic conversion that forms a hard porous ceramic-like crust under flame exposure
- Exceptional thermal insulation with low thermal conductivity to help prevent heat transfer
- Fire resistance, flame retardancy, ablation resistance, and thermal barrier capability in one material system
- High electrical insulation performance for protected battery and electrical structures
- Environmentally friendly material direction with customized sheet and die-cut support

Catégories : [Mousse de silicone](https://www.sheenmaterials.com/fr/silicone-foam/)
, [Mousse de silicone céramifiable / coupe-feu](https://www.sheenmaterials.com/fr/ceramifiable-fire-barrier-silicone-foam/)
Étiquettes : [Mousse de silicone](https://www.sheenmaterials.com/fr/etiquette-produit/silicone-foam/)
, [solid ceramifiable silicone rubber](https://www.sheenmaterials.com/fr/etiquette-produit/solid-ceramifiable-silicone-rubber/)

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- [Description](#tab-description)

## Foamed Silicone Rubber SM150-FG1

Ultra-Thin Two-Layer Ceramifiable Silicone Composite for Fire Barrier, Thermal Insulation, Sealing, and Electrical Protection

SM150-FG1  
Ultra-Thin Composite  
Ceramifiable Silicone  
Thermal Conductivity <0.3 W/(m·K)  
Dielectric Strength >5.0 kV  
UL94 V0

Series Snapshot

Modèle  
SM150-FG1

Couleur  
Blanc

Thickness Range  
0.3–3.0 mm

Densité  
1500 ± 30 kg/m³

### Informations techniques

Review the product positioning, core data, fire-barrier behavior, application fit, and supply direction for SM150-FG1 foamed silicone rubber.

[Q1 Product Positioning](#sm150fg1-q1)
  
[Q2 Technical Data](#sm150fg1-q2)
  
[Q3 Fire Barrier & Insulation](#sm150fg1-q3)
  
[Q4 Configurations & Handling](#sm150fg1-q4)
  
[Q5 Applications](#sm150fg1-q5)
  
[Téléchargements et FAQ](#sm150fg1-downloads)

Q1### What is SM150-FG1 designed for?

SM150-FG1 is designed for ultra-thin fire-barrier, sealing, and insulation applications where the material must behave like silicone rubber at room temperature but convert into a ceramic-like protective crust under extreme heat.

**Ultra-Thin Composite Direction**Suitable where the structure needs a very thin material with sealing capability plus thermal-barrier behavior.

**Ceramifiable Silicone Behavior**At room temperature it behaves like silicone rubber; under high-temperature flame it sinters into a hard porous ceramic-like crust.

**Fire Barrier + Thermal Insulation**Designed to provide fire resistance, flame retardancy, ablation resistance, and an insulating thermal barrier in one material system.

**Protection-Oriented Use**Suitable for insulation, sealing, and fire-protection roles in battery packs and charging infrastructure.

Q2### What are the core technical data for SM150-FG1?

The datasheet provides the following values for evaluating fire-barrier capability, electrical insulation, and thin-structure suitability.

| Propriété | Norme d'essai | SM150-FG1 |
| --- | --- | --- |
| Couleur | Visuel | Blanc |
| Épaisseur (mm) | / | 0.3–3.0 |
| Density (kg/m³) | ASTM D3574-95 | 1500 ± 30 |
| Résistivité volumique | JIS C 1302 | >1 × 1014 Ω-cm |
| Rigidité diélectrique | ASTM 149 | >5.0 kV |
| Conductivité thermique | ASTM D5470 | <0.3 W/(m·K) |
| Dielectric Constant | JIS C 1302 | 3.5 F/m |
| Flame Retardancy | UL94 | V0 |
| Tensile Properties | ASTM D412 | 1.7 MPa |
| Tearing Properties | ASTM D412 | 70 |

These values are suitable for early-stage screening. Final suitability should still be validated against the actual fire-barrier, sealing, and assembly conditions.

Q3### What performance strengths does SM150-FG1 emphasize?

The datasheet points to ceramic conversion under high temperature, exceptional thermal insulation, excellent compression resilience, and strong electrical insulation as the core functional directions.

**High-Temperature Ceramic Conversion**Transforms into a rigid ceramic body under high temperatures, providing a continuous thermal barrier.

**Exceptional Thermal Insulation**Low thermal conductivity helps effectively prevent heat transfer across protected interfaces.

**Excellent Compression Resilience**The datasheet explicitly states superior long-term sealing performance with resistance to compression set.

**Electrical Protection**High insulation performance supports protected electrical and battery-related assemblies.

Q4### How can SM150-FG1 be supplied and handled?

The datasheet lists customized sheet products and customized die-cut products, and states the material should be stored in a well-ventilated, cool, dry place away from open flames. It is described as non-toxic, non-hazardous for storage and transport, with a 12-month shelf life.

**Configurations Available**Sheet products: Customized  
Die-cut products: Customized

**Storage & Transportation**Store in a well-ventilated, cool, and dry place. Keep away from open flames.

**Safety**Le produit n'est pas toxique et doit être stocké et transporté comme une matière non dangereuse.

**Durée de conservation**12 mois

Q5### Which applications fit SM150-FG1 best?

The datasheet highlights battery-pack fire barrier and sealing applications, plus charging-pile fire sealing, as strong-fit scenarios.

#### Battery Pack Module Fire Barrier

Suitable for thermal insulation and fire barrier between modules within the battery pack.

#### Battery Pack Cover Sealing

Applicable to sealing and thermal insulation between the battery pack cover and the enclosure.

#### Inter-Cell Insulation Pads

Suitable for inter-cell insulation pad structures requiring thermal barrier and protection capability.

#### Charging Pile Fire Sealing

Can be used for fire sealing inside charging-pile structures and related protected electrical compartments.

### Téléchargements et FAQ

Technical Resources

[Download SM150-FG1 Datasheet](https://www.sheenmaterials.com/wp-content/uploads/2026/04/SM150-FG1-Datasheet-Sheen-Materials-Foamed-Silicone-Rubber.pdf)
  
[View Datasheet Center](https://www.sheenmaterials.com/fr/resource/datasheet-download/)
  
[Contact Sales for Sample Support](/cdn-cgi/l/email-protection#45362429203676053068362d20202b6b262a28)

Frequently Asked Questions

 Q1. What is the biggest difference between SM150-FG1 and conventional silicone sealing materials?SM150-FG1 behaves like silicone rubber at room temperature but converts into a hard porous ceramic-like crust under high-temperature flame exposure, giving it added fire-barrier capability.

  Q2. Is SM150-FG1 suitable for battery-pack fire-barrier structures?Yes. The datasheet explicitly references thermal insulation and fire barrier between modules within the battery pack, plus cover sealing and inter-cell insulation-pad use.

  Q3. Can the product be supplied in converted forms?Yes. The datasheet lists customized sheet products and customized die-cut products.

  Q4. What flame rating and shelf life are listed for SM150-FG1?The listed flame retardancy is UL94 V0, and the listed shelf life is 12 months.

  Q5. Is the product mainly about sealing only?No. In addition to sealing capability, the datasheet emphasizes fire resistance, flame retardancy, ablation resistance, thermal barrier performance, and electrical insulation.

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