Brief Introduction

White resin coated fiberglass filter mesh for molten aluminum is woven from alkali-free E-glass fiber in leno weave.

● The greige cloth is impregnated with light-colored modified phenolic resin and cured for shape retention.

● It has a creamy white appearance with stiff, self-supporting texture.

● The resin coats and locks fiberglass yarns to stabilize mesh size under molten aluminum erosion.

● It effectively traps alumina dross, refractory particles and non-metallic inclusions, slows down aluminum flow, reduces turbulence and minimizes slag & porosity defects in castings.

●  This is a single-use foundry consumable.

● As a custom grade, its gas evolution is slightly higher than standard yellow phenolic coated mesh.

✅It is suitable for medium-grade aluminum alloy gravity casting and low-pressure casting.

❌Not recommended for ultra-precision, air-tight aluminum castings.

Specification List 

Advantages

1. Resin locks yarns; mesh will not easily expand or shift under hot aluminum erosion, providing stable slag trapping performance.

2. Stiff fabric with self-supporting property, simplifies runner support structure.

3. Locked edges after cutting, no loose fibers. Ideal for pre-cut pieces and automated production.

4. Creamy white color allows on-site visual inspection for slag buildup.

5. Will not contaminate molten aluminum. The mesh floats with aluminum slag after pouring, easy for slag removal and scrap aluminum recycling.

6. Moderates aluminum flow velocity, reduces turbulence and secondary oxidation of molten aluminum.

Application

✅Suitable for: Medium-grade aluminum alloy gravity casting & low-pressure casting; pre-filtration for remelted scrap aluminum; prefabricated sprue caps, pre-cut mesh for automated foundry lines.

❌Not suitable for: High-precision air-tight castings such as aluminum wheels, cylinder heads, pistons and aerospace aluminum parts; continuous pouring above 800℃.

Operating Instructions

1. Installation: Place in sprue cup or horizontal runner. Refractory support tray is recommended for high flow pouring.

2. Preheating: Preheat the mesh together with gating system to avoid instant gas generation when cold mesh contacts hot molten aluminum.

3. Single-use only, replace per heat. Remove together with slag after pouring, reuse is prohibited.

4. Recommended pouring temperature: 680~760℃, avoid long-term operation over 800℃.

Samples for India Client

Such fiberglass filter mesh with 1.0x1.0mm mesh opening is delivered to our India client for their test!

We look forward to successful testing and subsequent cooperation on bulk orders.