Home Coated Black Foils & Films

Coated Black Foils & Films

Acktar’s coated foils are an ideal solution for optical applications where very large quantities, oversized part areas and contaminated environments make direct coating impractical. Acktar’s black foils provide all the benefits of stray-light suppression with Acktar Black Coatings, ready-made and awaiting application.

Acktar Coatings are available as either coated foil or film, with or without an adhesive backing, and as either sheets, die-cuts, or rolls.

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Showing all 9 products

White standard

Low solar absorptance and high emissivity foils for passive thermal management

Spectral Black^TM Foil

Semi-specular Wideband Black Light-shielding Aluminum Foil

Metal Velvet black coating foil applied to a metal component

Metal Velvet^TM Black Foil

Diffusive Wideband Absorbing Aluminum Foil for Low Reflection and High Emissivity

Lambertian Black^TM Foil

Abrasion Resistant Steel Foil for UV-IR Absorption - Extremely Black & Diffusive at all AOI

Maxi Black^TM Polymer Film

Diffusive Black Abrasion Resistant Polyimide Film, Optical density > 7.0

BlackOut^TM Material

Low-reflective Black Foil

Light Absorbing Sample Kit

Acktar Black Inorganic Coatings - the Ultimate Solution for Light Absorption

Stray Light Control Kit

2D Black Foil Pre-forms

Die-Cut Light Blocking Black Labels

Tight-tolerance Ultra Black Labels

Application of Acktar Coated Black Foils and films

Welcome to Acktar, where we offer cutting-edge coated black foils and films that provide unparalleled performance for your applications. Our products enable you to benefit from our advanced coatings without the need to send your parts to us, making it an ideal solution for very large quantities and contaminated environments where periodic renewal is required.

Our black foil coatings are available with or without an adhesive backing as sheets, die-cuts, or rolls, and we offer different types with various substrate materials, thicknesses, appearance, typical spectral range, AOI range, and abrasion resistance. With conformal thin flexible foils that are suitable for plastic and metal parts and more. The foils exhibit high emissivity, low reflectance, extremely low outgassing, no particulation, vacuum, cryogenic, and cleanroom compatibility, and cleanability, our products provide the perfect solution for a wide range of applications.

Our coated black foils and films are ideal for stray light absorption/suppression, optical packaging, laser devices, infrared systems, passive thermal control, and much more. With Acktar, you can trust that you will receive high-quality, reliable products that are designed to exceed your expectations.

Light-Absorbing Foil coating – Overview and Selection Guide

Black foil operating temperature range

Light-Absorbing Foil Coating – Overview and Selection Guide

Foil Type	Metal Velvet	Lambertian Black	Maxi Black	Spectral Black	Hexa Black

Substrate Material	Aluminum	Stainless Steel	Polyimide (Kapton)	Aluminum	Aluminum Honeycomb
KEY FEATURE	Reflectance ~ 1%	High absorptance at grazing angles	Thin Polyimide	Semi specular finish	Ultra-high absorptance at grazing angles
Thickness	120μm	100μm	25/50/75μm	130μm	2mm
Appearance	Diffusive	Highly diffusive	Diffusive	Specular	Diffusive 3D structure
Typical spectral range	EUV-FIR	EUV-FIR	UV-MWIR	VIS-MWIR	EUV-FIR
AOI range	0 – 60°	0 – 80°	0 – 60°	0 – 45°	0 – 88°
Reflectance normal AOI	< 1%	< 1.5%	< 2.5%	< 2%	< 1.5%
Abrasion Resistance	Light	Moderate to high	Moderate	Moderate	Moderate plus
Cleanliness	Class 10000 – ISO 7	Class 100 – ISO 5	Class 100 – ISO 5	Class 100 – ISO 5	Class 10000 – ISO 7
Self adhesive back	Self adhesive back standard – available without adhesive
Service temperature	Without adhesive: long term (-)196°C to (+)350°C; short term up to (+)400°C				(-)258°C to (+)250°C
	With standard adhesive: long term (-)40°C to (+)121°C; short term up to (+)177°C
	With low-outgassing: long term (-)50°C to (+)150°C; short term up to (+)260°C
	Delivery Formats
Sheet	20×30 cm / 20×60 cm
Roll	20/30 cm width, any length
Adhesive	Optional
Die-cut (pre-cut) labels are supplied as	Tight-tolerance cut to shape labels according to drawing
Certificates	RoHS, REACH, ISO 9001:2015, AS9100
	Storage and Shelf Life
Storage conditions	Indoors (temperature approx. 21°C; RH approx. 50%)
Standard shelf life	For best performance, apply adhesive and remove protective film with 12 months

Shelf life standard – 12 month from Acktar shipment- extended shelf life available.
A High Humidity proof (HP) is available in some formats
Adhesive option available: Standard or Low outgassing

Die-Cut Black Labels

Product	operating temperature – deg C
coated foil – no adhesive	Long term -196℃ to +350℃, short term up to +400℃
coated foil with standard adhesive	Long term -40℃ to +121℃, short term up to +177℃
coated foil with low outgassing adhesive	Long term -50℃ to +150℃, short term up to +260℃
coated polymer	Long term -50℃ to +150℃, short term up to +260℃

Patterned Parts

Black Coated foils and films may be supplied as tight-tolerance cut-to-shape labels to be applied by you in-house.
This is a simple, cost effective solution for parts that cannot be coated at our facility.

Key Features and Advantages

Conformal thin flexible foil
Appropriate for plastic and metal parts
High emissivity / low reflectance
Extremely low outgassing
No particulation
Vacuum, cryogenic, and clean room compatible
Cleanable

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Typical Applications

Stray light absorption / suppression
Optical packaging
Laser devices
Infra red systems
Passive thermal control

Download our brochure on Acktar Black Coated Black Films and Foils