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Makrolon® LQ2887 RE

Polycarbonate; medium viscosity; easy release; UV stabilized; UV 400 cut off

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About

Product Types

No data available

Material

Plastics
CQ renewable attributed, Transparent, Optical quality

General Characterization

No data available

Storage Conditions

No data available

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Product description

Polycarbonate; medium viscosity; easy release; UV stabilized; UV 400 cut off

Applications

Injection molding; Optics and lenses

Sustainability

Partially bio-circular grade / Attributed via mass balance (according to ISCC PLUS Standard). For specific content see sustainability declaration.

Typical Values

Rheological properties

Property Test Condition Value Unit Standard
Melt Volume-flow Rate (MVR) 300 °C/ 1.2 kg 7 - 10.5 cm³/10min ISO 1133-1

Mechanical properties (23 °C/50 % r. h.)

Property Test Condition Value Unit Standard
Tensile modulus 1 mm/min 2,300 MPa ISO 527-1,-2
Yield Stress 5 mm/min 67 MPa ISO 527-1,-2
Yield Strain 5 mm/min 6 % ISO 527-1,-2
Nominal Strain at Break 5 mm/min 70 % ISO 527-1,-2
Stress at Break 5 mm/min 130 MPa ISO 527-1,-2
Izod Notched Impact Strength 23 °C 69 kJ/m² ISO 21305/based on ISO 180/A

Material specific properties

Property Test Condition Value Unit Standard
Luminous Transmittance (Clear Transparent Materials) 4 mm > 85 % ISO 13468-2

Processing conditions for test specimens

Property Test Condition Value Unit Standard
Injection Molding - Melt Temperature 80 °C ISO 294
Injection Molding - Mold Temperature 290 °C ISO 294
Injection Molding - Injection Velocity 200 mm/s ISO 294

Recommended processing and drying conditions

Property Test Condition Value Unit Standard
Standard Melt Temperature 300 °C
Barrel Temperatures 290 - 300 °C
Barrel Temperatures 280 - 290 °C
Barrel Temperatures 270 - 280 °C
Barrel Temperatures 250 - 260 °C
Mold Temperatures 80 - 120 °C
Hold Pressure (% of Injection Pressure) 50 - 75 %
Plastic Back Pressure (specific) 50 - 150 bar
Peripheral Screw Speed 0.05 - 0.2 m/s
Shot-to-Cylinder Size 30 - 70 %
Dry Air Drying Temperature 120 °C
Dry Air Drying Time 2 - 3 h
Moisture Content max. (%) ≤ 0.02 %
Vent Depth 0.025 - 0.075 mm

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.

The Product Safety First Program | Covestro

Please note that for products manufactured in different colors, safety data may vary depending on the color variant.

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.

Recommended Processing and Drying Conditions

Barrel temperatures are valid for a standard 3-zone barrel. Temperature set-up for different barrel types may change according to configuration. Values for hold pressure as percentage of injection pressure may vary depending on, amongst others, part geometry, injection molding machine and injection mold. Drying conditions are for dry air dryers only. Drying times and drying temperatures may differ depending on valid dryer type.

Contact

Please use our contact form or contact us directly by sending an e-mail to technical-datasheets@cx.covestro.com .

Downloads

Technical Data Sheet
Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com

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