eccosorb?coating 300 two part polyurethane coating americas: +1.866.928.8181 europe: +49.(0)8031.2460.0 asia: +86.755.2714.1166 www.lairdtech.com two part polyurethane coating eccosorb coating 300 is a two-part polyurethane coa ting that is heavily loaded with iron to provide its absorbing characteristics. it is a thix otropic coating that can be brushed on or sprayed on using common spray equipment. features and benefits ? conformable ? silicone-free markets ? commercial telecom ? security and defense specifications typical properties eccosorb coating 300 frequency range >1 ghz max service temperature c (f) 150 (302) density (g/cc) 4.6 surface weight of 0.7 mm thick coating (kg/m2) 3.22 mix ratio paint: catalyst 100:1 recommended thickness of each coating (m) 100 - 150 pot life 2 hours data for design engineer guidance only. observe d performance varies in application. engineers are reminded to test the material in application. electromagnetic properties eccosorb coating 300 3 ghz 8.6 ghz dielectric constant 22.8 4.6 dielectric loss tangent 0 0 magnetic permeability 3.79 1.09 magnetic loss tangent 0.69 1.98 attenuation (db/cm) 20 63 impedance magnitude (z/z 0 ) 0.4 0.4 applications ? eccosorb coating 300 is designed to reduce the rada r cross section of objects, to reduce false echo or ghost images on ship radar, and to attenuat e surface currents that are generated by radiation impinging on metal surfaces. ? eccosorb coating 300 is designed for use on compoun d surfaces where flat sheet elastomer or foam absorbers are not desirable. ? to operate as a specular absorber such that resonan t absorption at a particular frequency is obtained, it is necessary for the eccosorb coating 300 to be bonded to a metal surface. the overall thickness of the coating is critical to per form as a specular absorber and is attained by applying several layers until the desired performa nce is achieved. availability ? please contact your local supplier as there might b e regional differences with regard to sizes and packaging.
eccosorb?coating 300 2 rfp-ds-coating300 011216 a ny information furnished by laird technologies, inc . and its agents is believed to be accurate and rel iable. all specifications are subject to change wit hout notice. responsibility for the use and applica tion of laird technologies materials rests with the end user. laird technologies makes no warranties as to the fitness, merchantability, suitability or no n- infringement of any laird technologies materials or products for any specific or general uses. lair d technologies shall not be liable for incidental o r consequential damages of any kind. all laird techno logies products are sold pursuant to the laird tech nologies terms and conditions of sale in effect fr om time to time, a copy of which will be furnished upon request. ? copyright 2015 laird technologies, inc. all rights reserved. laird, lair d technologies, the laird technologies logo, and ot her marks are trademarks or registered trademarks o f laird technologies, inc. or an affiliate company thereof. other product or service names may be the property of third parties. nothing herein provi des a license under any laird technologies or any t hird party intellectual property rights. instructions for use ? the system has to be applied in dry conditions ? make sure that the surface to be coated is clean an d free of oil and dusts. ? the temperature should be higher than 15 c during application and curing. ? thoroughly mix the paint until homogeneous. ? add the catalyst in the correct weight ratio, see t ypical properties table above. ? pot life is 2 hours. ? it is recommended to build up the total thickness o f the coating in steps of 100 - 150 m with flash times of one hour between steps. the total l ayer should be cured for 24 hours minimum at room temperature. for layers thicker than 500 m, the curing steps should be 24 hours after each 500 m layer. ? for slightly accelerated curing of the final thickn ess, 2 hours at 80 c is recommended. flash point between layer applications must be maintained to ensure that the solvent has evaporated. ? for thinning, small amount of mek may be used. ext ended flash points are required to evaporate solvent. ? thickness note : eccosorb coating 300 is applied in thin layers unti l the correct thickness is obtained. correct thickness is determined on a case-by-case situation depending on application and frequency of operation.
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