and Lightning Protection Film AF 536

Suggested Cure Cycle

Curable in cycles used to cure most epoxy prepregs. Temperature rise rate between

1-10°C per minute (2-20°F per minute). Allowable to vent vacuum when the autoclave

pressure reaches approximately 0.10-0.14MPa (15-20 PSI). Hold at least 60 minutes

at 121°C (250°F) or 177°C (350°F) with at least 0.07MPa (10 PSI) pressure.

Suggested Finishing Techniques

Proper use of AF 536 film will help reduce or eliminate most of the materials and labor

involved in typical fill and sand operations prior to painting. AF 536 will give a glossy,

smooth pin hole free finish. Light sanding is suggested to remove mold release agent

and to dull the glossy finish for adhesion of the paint.

1. Remove any residual tool release coating from the cured AF 536 surfacing film by

wiping with an unsized cheese cloth lightly saturated with 3M General Purpose

Cleaner #0898.

Wipe dry with unsized cheesecloth.

*Note: When using solvents, follow the manufacturer’s precautions and directions for use.

2. Composite parts surfaced with AF 536 surfacing film can be finished with either

hand sanding or machine sanding methods.

a. Suggested sanding instructions

Use 360 grit or finer abrasive to scuff the surface lightly to remove gloss.

If the AF 536 film includes a conductor, a veil protects the conductor from

damage; however, heavier grits or high pressure on the abrasive may expose

the underlying conductor.

3. Panels surfaced with AF 536 surfacing film can be primed and painted using standard

aerospace painting procedures for composite parts.

Shelf Life and Storage

Conditions:

Standard Shelf Life for

Composite Surfacing and

Lightning Protection Film AF

536 is 12 months from date

of shipment when stored

at -18°C (0°F) or below in

original unopened container.

The suggested maximum

out-time of AF 536 is

45 days when stored below

27°C (80°F).

Note: AF 536 film should be

permitted to thoroughly warm to

room temperature before being

used in order to prevent moisture

condensation. (Do not open

protective container prior to

reaching ambient conditions.)

Technical Information: The technical information, guidance, and other statements contained in this document or otherwise provided by 3M are based

upon records, tests, or experience that 3M believes to be reliable, but the accuracy, completeness, and representative nature of such information is not

guaranteed. Such information is intended for people with knowledge and technical skills sufficient to assess and apply their own informed judgment to

the information. No license under any 3M or third party intellectual property rights is granted or implied with this information.

Product Selection and Use: Many factors beyond 3M’s control and uniquely within user’s knowledge and control can affect the use and performance

of a 3M product in a particular application. As a result, customer is solely responsible for evaluating the product and determining whether it is

appropriate and suitable for customer’s application, including conducting a workplace hazard assessment and reviewing all applicable regulations and

standards (e.g., OSHA, ANSI, etc.). Failure to properly evaluate, select, and use a 3M product and appropriate safety products, or to meet all applicable

safety regulations, may result in injury, sickness, death, and/or harm to property.

Warranty, Limited Remedy, and Disclaimer: Unless a different warranty is specifically stated on the applicable 3M product packaging or product

literature (in which case such warranty governs), 3M warrants that each 3M product meets the applicable 3M product specification at the time 3M

ships the product. 3M MAKES NO OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY

IMPLIED WARRANTY OR CONDITION OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR ARISING OUT OF A COURSE OF

DEALING, CUSTOM, OR USAGE OF TRADE. If a 3M product does not conform to this warranty, then the sole and exclusive remedy is, at 3M’s option,

replacement of the 3M product or refund of the purchase price.

Limitation of Liability: Except for the limited remedy stated above, and except to the extent prohibited by law, 3M will not be liable for any loss or

damage arising from or related to the 3M product, whether direct, indirect, special, incidental, or consequential (including, but not limited to, lost

profits or business opportunity), regardless of the legal or equitable theory asserted, including, but not limited to, warranty, contract, negligence, or

strict liability.

Automotive & Aerospace Solutions Division

3M Center

St. Paul, MN 55144-1000

Phone: 1-800-328-1684

Web: www.3M.com/aerospace

Issue date: 7/2019

3M and Scotch-Weld are

trademarks of 3M Company.

© 3M 2018. All rights reserved.