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Plexiglass Brand Acrylic Sheet Quality Specifications
5/5/2015
by Anthony ZAZO
PLEXIGLAS® MC, Q, T, UF- 5, AND FROSTED: MANUFACTURING SPECIFICATION
- Dimensional Tolerances
- Thickness (-10 +10%)
ASTM D-4802 thickness tolerances (-5%/+5%) can be manufactured to upon request.
- Length +1/4", -0"
Width +1/4", -0"
- Squareness -comparison of diagonal measurement
Sheet Dimension | Max Difference in Measurement |
>48" | 1/8" |
>48" but <72" | 3/16" |
>72" but <96" | 1/4" |
>96" but <168" | 3/8" |
Based on 4 x 8 sheet.
- Bubbles
1/32" - 1 per 4 sq. ft allowed. Over 1/32" - none allowed. Less than 1/32" disregard unless clusters form causing major visual defects.
- Foreign Particles Black or Red Specks. Dust, Etc.
Less than 1/32" disregard unless clusters form chain bubbles causing major visual defects.
1/32" - 1 per 4 sq. ft allowed.
Over 1/32" - none allowed.
- Foreign Color Forming V-Patterns, Wavy and Straight Lines or Bands.
None allowed where a discernible pattern can be visually seen.
- Die Lines
No visually detected die lines when inspected at 30" distance under normal factory lighting held 45 degrees - 90 degrees to the line of sight.
- Chatter
Must comply to established visual standards.
- Pits
1/16" - 1" per 4 sq. ft allowed. Over 1/16" - none allowed. Less than 1/16" - allowable unless there is a discernible pattern.
- Parting Lines
None allowed as seen in normal factory light, add point source light.
- Flow Line on Air Traps
None allowed which can be visually detected under point source light.
- Warble
Must comply to established visual standards viewed under point source light.
- Scratches
No visually detected scratches when inspected at 30" distance under normal factory lighting held at 45 degrees to 90 degrees to the line of sight.
- Sawdust Contamination
None allowed under the masking or between surfaces. No build-up of sawdust can be fused along sheet edge.
- Flatness (Warpage)
1/4" maximum displacement from perfect flatness for a 4' x8' size sheet.
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