Problem & Solution

Practical answers to common plastic material challenges

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PMMA Weld Line Low Strength

Material Analysis PMMA; weld line; strength; flow front temperature; gate; diffusion

PMMA Internal Stress Cracking

Injection Molding PMMA; stress cracking; internal stress; annealing; solvent; mold temperature

PMMA Melt Overheating Yellowing

Processing Machinery PMMA; yellowing; thermal degradation; temperature; residence time; light transmittance

PMMA Insufficient Drying Bubbles and Silver Streaks

Material Drying PMMA; drying; bubbles; silver streaks; moisture content; dehumidifying

PMMA Injection Product Color Difference

Color difference = dispersion and stability.

Injection Molding PMMA; color difference; color masterbatch; dispersion

PMMA Product Insufficient Scratch Resistance

Scratching = surface engineering.

Molding Process PMMA; scratch; hard coating; grade

PMMA Injection Nozzle Problem

Nozzle = precise temperature.

Injection Molding PMMA; nozzle; drooling; temperature

PMMA Product Insert Cracking

Insert = preheating.

Molding Process PMMA; insert; cracking; preheating

PMMA Injection Product Weld Line Whitening

White line = cold flow front.

Injection Molding PMMA; weld line; whitening; venting

PMMA Product Yellowing in Storage

Storage = avoid light and heat.

Material Analysis PMMA; yellowing; storage; aging

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