Superior Heat Spreading for Every Application

eGRAF® SPREADERSHIELD™ flexible graphite heat spreaders provide a unique material capable of cooling a hot component, protecting a temperature sensitive component, reducing a thermal gradient, or preventing a surface hot spot.

SPREADERSHIELD heat spreaders are ideal for a wide range of electronics applications, from the thinnest and lightest smartphones to higher power devices.


  • In-plane conductivity 300-1600 W/mK
  • Anisotropic ratio up to 300:1
  • Thicknesses as low as 17μm
  • 30% lighter than Al and 80% than Cu
  • Continuous reel-to-reel format
  • Spreads heat up to 4x copper and 7x aluminum
  • Eliminates hot spots and protects temperature-sensitive components
  • Enables the slimmest device designs
  • Saves weight compared to metal alternatives
  • Ideal for high volume production

eGraf® thermal management products, solutions and processes have earned the following proprietary rights:

A Thermal Management System:  CA2401619; CN1874889; CN101091423;  CN205564920; CN205692938; CN207369488; EP1536313; EP1680274; EP1742524; EP2026164; EP2296454; EP2973840; JP3204114; JP3206039; JP3213925; JP4555300; KR10-1168099; KR10-0935275; KR20-0486521; MX241283; US6758263; US6777086; US6982874; US7161809; US7292441; US7573717; US7799428; US7889502; US8955983; US9664368; US9673494; US10177070; TWI278275; TWI316842; TWM487605; TWM505066


Battery Thermal Management:   CN203398243; CN203398244; CN203950846; CN203950871; CN203481336; CN204128420; KR20-0479471;  KR10-2006430; KR20-0479460; KR20-04810140; KR20-0482438; KR20-0485795; KR20-0487029; JP3183200; JP3195255; US9343784; US9368843; US9444123; US9716296; US9774063: US9797664; US10587019; D701166; D709027

Display:  CN1617661; CN17255945; CN1892320; CN102159060; CN102573415; EP1673754; EP1739708; EP2528424; KR737231; KR767558; KR10-0768630; KR10-0830526; KR10-0938749; KR10-1012168; KR10-1055051; MX270438; US7138029; US7150914; US7160619; US7276273; US7658999; US7666270; US8211260; US9081220: US9087669; US9104058; US9250462; US9253924; US9253932; US9653763; US9761403; US10440865; TWI277998; TWI294600; TWI304375; TWI369936

Flexible graphite sheet:  CA2557497; CN203415567; EP1384261; EP 1467856; KR20-0478915; JP3186199; US6673284; US6746768; US6777086; US7166912; US9267745; US10744736

Flexible circuit:  US9546763; US9546764; US10094516

Heat Sink:  US6538892; US6749010; US6771502; D662898; D677227;

HiThermTM Flexible Graphite:  EP1467856; JP3207324; KR20-0492216; US6746768; US10589998; TWM510925