Makrofol® BL 2-4 820816 is a translucent dazzle free extruded film based on Makrolon, the High Tech Polycarbonate of Covestro. It comprises excellent punching performance combined with high light transmission and moderate light scattering properties. Surface texture one side very fine matte, one side fine matte. Makrofol® BL 2-4 820816 is available in various standard thicknesses from 250 microns to 375 microns. Other thicknesses on request. Typical applications are automotive instrument panels, illuminated gauges, dials and graphics, front panels and scales on radios and control consoles, diffusers on projection screens.
Product description
Typical Values
Optical Properties
Property | Test Condition | Value | Unit | Standard |
---|---|---|---|---|
Tensile Modulus | 2100 | MPa | ISO 527-1,-3 | |
Stress at break, parallel | ≥ 60 | MPa | ISO 527-1,-3 | |
Stress at break, across | ≥ 60 | MPa | ISO 527-1,-3 | |
Strain at break, parallel | ≥ 100 | % | ISO 527-1,-3 | |
Shrinkage, parallel | 130°C, 1 h | ≤ 0,2 | % | following IEC 60674-2 |
Shrinkage, across | 130°C, 1 h | ≤ 0,2 | % | following IEC 60674-2 |
Burning rate (FMVSS 302) | ≤ 100 | mm/min | ISO 3795 | |
Density | 1,25 | g/cm3 | ISO 1183, 20°C method C | |
Gloss, 60° top side | 75 | Digits | ISO 2813 | |
Gloss, 60° reverse side | ≤ 15 | Digits | ISO 2813 | |
Roughness R3z, top side | ≤ 5 | µm | following ISO 4287/88 | |
Roughness R3z, reverse side | ≤ 11 | µm | following ISO 4287/88 | |
Light transmittance | ≥ 80 | % | ISO 13468-2, following DIN 5036 | |
Half-power Angle | 6,0 | ° | DIN 58161 |
Health and Safety Information
Before working with this product, you must read and become familiar with the available information on its risks, proper use, and handling. Information is available in several forms, e.g., in particular in the currently valid safety data sheets and product labels. For further information contact your Covestro representative.
Disclaimer
General
The manner in which you use our products, technical assistance and information (whether verbal, written or by way of production evaluations), including any suggested formulations and recommendations, are beyond our control. Therefore, it is imperative that you test our products to determine suitability for your processing and intended uses. Your analysis must at least include testing to determine suitability from a technical, health, safety, and environmental and regulatory standpoint. Such testing has not necessarily been done by Covestro, and Covestro has not obtained any approvals or licenses for a particular use or application of the product.
Unless we otherwise agree in writing, all products are sold strictly pursuant to the terms of our standard conditions of sale which are available upon request.
All information and including technical assistance is given without warranty or guarantee and is subject to change without notice. It is expressly understood and agreed by you that you assume and hereby expressly release indemnify us and hold us harmless from all liability, in tort, contract or otherwise, incurred in connection with the use of our products, technical assistance, and information. Any statement or recommendation not contained herein is unauthorized and shall not bind us. Nothing herein shall be construed as a recommendation to use any product in conflict with any claim of any patent relative to any material or its use. No license is implied or in fact granted under the claims of any patent.
Non Medical and non Food Contact
This product is not designated for the manufacture of a medical device or of intermediate products for medical devices (1). This product is also not designated for other specifically regulated applications (e.g. including cosmetics, plant protection, fertilisers, plant strengtheners, food processing, food contact and others). If the intended use of the product is for the manufacture of a medical device or of intermediate products for medical devices or for other specifically regulated applications Covestro must be contacted in advance to provide its agreement to sell such product for such purpose. Nonetheless, any determination as to whether a product is appropriate for use in a medical device or intermediate products for medical devices, for Food Contact products or cosmetic applications must be made solely by the purchaser of the product without relying upon any representations by Covestro.
1) Please see the Guidance on Use of Covestro Products in a Medical Application document.
Sample
Any samples provided by Covestro are for testing purposes only and not for commercial use.
Typical Value
These values are typical values only. Unless explicitly agreed in written form, they do not constitute a binding material specification or warranted values. Values may be affected by the design of the mold/die, the processing conditions and coloring/pigmentation of the product. Unless specified to the contrary, the property values given have been established on standardized test specimens at room temperature.
Contact
Please use our contact form or contact us directly by sending an e-mail to technical-datasheets@cx.covestro.com .