REHAU PMMA Edgebands with Functional Layer: Standard Tolerances
This document details the standard tolerances for REHAU PMMA edgebands that include a functional layer. Specifications are provided in multiple languages to ensure clarity for international users.
Width Tolerances
Standard tolerances for the width (b) of PMMA edgebands with a functional layer are as follows:
| Width Range (mm) | Tolerance (mm) |
|---|---|
| ≥ 15.00 to < 17.00 | ± 0.20 |
| ≥ 17.01 to < 33.00 | ± 0.30 |
| ≥ 33.01 to < 40.00 | ± 0.40 |
| ≥ 40.01 to < 65.00 | ± 0.50 |
Thickness Tolerances
Standard tolerances for the thickness (S) of PMMA edgebands with a functional layer are as follows:
| Thickness Range (mm) | Tolerance (mm) |
|---|---|
| ≥ 0.80 to < 1.80 | -0.10 / +0.10 |
| ≥ 1.81 to < 3.20 | -0.15 / +0.05 |
Layer Thickness Tolerance
The tolerance for the layer thickness (S2) of the functional layer on PMMA edgebands is specified as:
Layer thickness S2 (Functional layer always on the bottom side, article-specific deviations possible): 0.22 +0.03/-0.07 mm
Pre-tension / Bow Tolerances
Pre-tension (bow) tolerances for PMMA edgebands with a functional layer vary based on width and thickness:
| Width (mm) | Tolerance (mm) | ||
|---|---|---|---|
| Thickness ≤ 1.69mm | Thickness 1.70 to 2.20mm | Thickness 2.21 to 4.20mm | |
| ≥ 15.00 to < 23.00 | max. 0.50 | max. 0.35 | max. 0.30 |
| ≥ 23.01 to < 30.00 | max. 0.50 | max. 0.35 | max. 0.30 |
| ≥ 30.01 to < 37.00 | max. 0.50 | max. 0.40 | max. 0.35 |
| ≥ 37.01 to < 44.00 | max. 0.50 | max. 0.45 | max. 0.40 |
| ≥ 44.01 to < 54.00 | max. 0.70 | max. 0.50 | max. 0.45 |
| ≥ 54.01 to < 65.00 | max. 2.00 | max. 1.50 | max. 1.00 |
Plane Parallelism Tolerances
Plane parallelism tolerances for PMMA edgebands with a functional layer depend on thickness and width:
| Thickness (mm) | Tolerance (mm) | ||
|---|---|---|---|
| Width ≤ 30.00mm | Width 30.01 to 40.00mm | Width ≥ 40.01mm | |
| ≥ 0.80 to < 3.20 | max. 0.05 | max. 0.10 | max. 0.15 |
Longitudinal Warpage Tolerances
Longitudinal warpage (straightness) tolerances for PMMA edgebands with a functional layer are specified per 2 meters and depend on thickness:
| Thickness Range (mm) | Tolerance (mm / 2m) | Measurement Conditions |
|---|---|---|
| ≥ 0.80 to < 1.30 | max. 20 mm / 2 m | Free-standing / No stress / Free storage / Without tension |
| ≥ 1.31 to < 1.90 | max. 10 mm / 2 m | |
| ≥ 1.91 to < 3.20 | max. 8 mm / 2 m |
Notes on Dimensions
For special dimensions, the respective drawing will be valid. Please refer to the corresponding drawing for specific dimensional requirements.
