55005139

Eccostock®PP Flexible, Low Loss, Closed Cell Polyethylene Foam FLEXIBLE LOW LOSS CLOSED CELL FOAM Eccostock PP is a closed cell, cross-linked polyethylene foam with low loss, low dielectric, and low density. Due to the low dielectric constant, the materials are essentially transparent to electromagnetic energy. Dielectric constant does not change with frequency and change with temperature is negligible. It offers excellent thermal insulation. Eccostock PP is lightweight and will return to its normal thickness after being compressed. It can be heat sealed to form blocks of material or to make contoured pieces that can be draped over complex objects. It is tough and weather resistant. FEATURES AND BENEFITS MARKETS • Lightweight • Low loss, low dielectric, low density • Flexible material • Commercial Telecom • Security and Defense SPECIFICATIONS TYPICAL PROPERTIES ECCOSTOCK PP Eccostock PP-2 Eccostock PP-4 Temperature Range °C (°F) Dielectric Constant -80 to 85 (-112 to 185) 1.03 -80 to 85 (-112 to 185) 1.06 Compression Strength, kPa @25%(@50%) Compression Set (% of original thickness) Hardness, Shore A 35 (100) 28 7 70 (150) 16 15 Loss Tangent Density, g/cc (lbs/ft³) Tensile Strength, kg/cm² 0.0001 0.032 (1.8 - 2.2) 2.5 0.0001 0.064 (3.6 – 4.4) 5.5 Elongation % Thermal Conductivity, W/m-K Water absorption, g/cm²(lb/ft²) of cut surface 220 0.040 290 0.042 0.04 0.04 Data for design engineer guidance only. Observed performance varies in application. Engineers are reminded to test the material in application. APPLICATIONS • Eccostock PP can be used as radomes, blankets, and coverings where radar transparency is desired. It can also be used in a variety of electrical and microwave applications. • With its low density and being closed cell, it finds uses in ocean buoyancy applications. • It has been used as a spacer in antenna applications. AVAILABILITY Americas: +1.866.928.8181 Europe: +49.(0)8031.2460.0 Asia: +86.755.2714.1166 • Eccostock PP is available in two densities: 2 lb/ft³(32 kg/m³) and 4 lb/ft³ (64 kg/m³). It is designated as Eccostock PP-2 and Eccostock PP-4. • Standard sheets are available in 61 x 61 cm (24”x24”) and 122 x 152 cm (48” x 60”) sheets with thickness of 0.32 cm and 0.64 cm (1/8” and 1/4”). Eccostock PP-4 also with thickness of 0.16 cm (1/16”). • Other sheet sizes are available on special order. www.lairdtech.com RFP-DS-PP 112515 Any information furnished by Laird Technologies, Inc. and its agents is believed to be accurate and reliable. All specifications are subject to change without notice. Responsibility for the use and application of Laird Technologies materials rests with the end user. Laird Technologies makes no warranties as to the fitness, merchantability, suitability or non- infringement of any Laird Technologies materials or products for any specific or general uses. Laird Technologies shall not be liable for incidental or consequential damages of any kind. All Laird Technologies products are sold pursuant to the Laird Technologies’ Terms and Conditions of sale in effect from time to time, a copy of which will be furnished upon request. © Copyright 2015 Laird Technologies, Inc. All Rights Reserved. Laird, Laird Technologies, the Laird Technologies Logo, and other marks are trademarks or registered trademarks of Laird Technologies, Inc. or an affiliate company thereof. Other product or service names may be the property of third parties. Nothing herein provides a license under any Laird Technologies or any third party intellectual property rights.