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Products/double-chopped-strand-sandwich-mat-with-pp-core

PP-Core Double-Layer Chopped-Fiber Sandwich Felt

2025-04-25double-chopped-strand-sandwich-mat-with-pp-core
PP-core double-layer chopped-fiber sandwich mat is made by stitching two layers of chopped-fiber glass mat together with polyester yarn and a PP core in a sandwich structure.This material is compatible with unsaturated polyester, vinyl ester, and epoxy resins. It is widely used in shipbuilding, wind energy, automotive, rail transit components, and flat panels, and is suitable for molding processes such as RTM, vacuum infusion, and hand lay-up.

Basic Data

Specifications and Models

Weight (g/m²)

Chopped Fiber Layer / Chopped Fiber Layer (g/m²)

PP Core Layer (g/m²)

Moisture Content (%)

Permeation Rate (≤s)

EMNM300/180/300

780

300/300

180

≤0.2

≤60

EMNM450/180/450

1080

450/450

180

≤0.2

≤60

EMNM600/180/600

1380

600/600

180

≤0.2

≤60

EMNM750/180/750

1680

750/750

180

≤0.2

≤60

EMNM300/250/300

850

300/300

250

≤0.2

≤60

EMNM450/250/450

1150

450/450

250

≤0.2

≤60

EMNM600/250/600

1450

600/600

250

≤0.2

≤60

EMNM750/250/750

1750

750/750

250

≤0.2

≤60

Notes

  • Web Width Specifications: Standard widths are 1250 mm and 1270 mm. Other specifications are available upon customer request, ranging from 200 mm to 3200 mm.

  • Packaging: PP-core, double-layer chopped-fiber sandwich felt is typically wound onto a paper tube with an inner diameter of 76 mm, wrapped in plastic film, and then packed into a cardboard box. Rolls should be stored horizontally and can be loaded onto pallets or shipped loose in containers.

  • Storage Conditions: The product should be stored in a cool, waterproof environment. The recommended storage temperature is 15°C to 35°C, with a relative humidity of 35% to 65%. Keep the product in its original packaging before use to prevent moisture absorption.

FAQ

How to order PP-Core Double-Layer Chopped-Fiber?
For bulk orders of PP-Core Double-Layer Chopped-Fiber, please contact our sales team via the contact page (https://www.yunno.net/en/contact) or email us at huyu@yunno.net, or call/WhatsApp +86 137 7522 5407. We provide cold-chain logistics and technical support.
Do you provide technical data sheets (TDS) and safety data sheets (MSDS) for PP-Core Double-Layer Chopped-Fiber?
Yes, Yunno Chemical provides full technical data sheets (TDS), certificates of analysis (COA), and GHS-compliant safety data sheets (MSDS) for qualified customers. Please contact our technical support team for more information.

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