CategoryMaterials & Sheet Quality
ABS Moisture Blistering
Separate moisture-related bubbles in ABS sheet from overheating, extrusion voids, contamination, and surface degradation, then correct handling and drying.
Thermoforming Wiki
Diagnose thermoforming defects by symptom, cause, process area, and material.
CategoryMaterials & Sheet Quality
ABS Overheating and Surface Shift
Recognize ABS overheating through gloss change, color shift, odor, surface instability, sag, and property loss, then correct heat exposure and material condition.
CategoryMaterials & Sheet Quality
Acrylic Crazing After Thermoforming
Prevent fine cracks in thermoformed acrylic by controlling forming stress, moisture, machining, flame polishing, assembly load, and chemical exposure.
CategoryMaterials & Sheet Quality
Acrylic Gloss and Detail Loss
Correct dull acrylic surfaces and weak detail by balancing forming temperature, tool finish, air evacuation, sheet type, stretch, and contact pressure.
CategoryVacuum, Pressure & Pneumatics
Air Burn Marks in Thermoforming
Identify localized air burn caused by rapid compression of trapped gas and correct venting, first-contact sequence, airflow, and pressure application.
CategoryVacuum, Pressure & Pneumatics
Air Entrapment in Thermoforming
Diagnose trapped-air pockets, dull areas, and incomplete contact caused by sealed flow paths, smooth tools, poor vent placement, or early sheet contact.
CategoryMold Design & Material Distribution
Asymmetric Material Distribution
Correct one-sided thinning and uneven draw caused by asymmetric geometry, thermal gradients, plug misalignment, sheet position, or directional sheet properties.
CategoryProcess Control & Machine Diagnostics
Axis and Platen Misalignment
Correct uneven tool closure, plug position, sealing, and draw caused by platen tilt, axis desynchronization, guide wear, frame deflection, or setup error.
CategoryTrimming & Secondary Operations
Backing Resin Distortion of Thermoformed Shells
Prevent reinforced thermoformed shells from warping or blistering because of resin exotherm, cure shrinkage, poor adhesion, moisture, or uneven backing.
CategoryCooling, Shrinkage & Demolding
Blocked Mold Cooling Channels
Locate restricted or blocked mold cooling passages that create hot zones, long cycles, sticking, warpage, gloss differences, or cavity imbalance.