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PRE-BOND PREPARATION AND PRIME
Poly-Metal Finishing Inc. is one
of the few companies in the country approved by Sikorsky Aircraft and
Boeing to do preparation and pre-bond priming.
Some of the
specifications utilized most by Poly-Metal Finishing Inc. are:
- Sikorsky - SS8752,
SS8442, SS8778, SS8607, SS8603, SS8612 and SS8446 to name a few
- Boeing -
HP4-100, HP4-35 and HP4-57 to name a few
(If not listed, please
call with your specification needs and we will be happy to let you know
if we are approved to do that specification.)
Pre-bond primer
provides a superior surface treatment prior to bonding and can be applied
to a variety of materials.
 ---Aluminum---
Pre-bond priming utilizing the
anodize process can only be applied to Aluminum alloys. Although most
Aluminum alloys can be processed, those with a low copper content (less
than 3.5%) and a low silicon content(less than 5%) are recommended.
(We’ve found that the best results occur using 6061, 7075 wrought alloys,
2024 Alclad, 355,356 cast alloys and 319 die cast alloys.) After anodize,
primer is applied within 4-8 hours.
Typically Stainless
Steel alloys are vapor blasted (per SS8442) and then sulfuric acid etched
(per SS8778). After rinsing and drying, the parts are primed within 4
hours. Most common alloys include 17-4PH, and 301/302 SS series.
---Titanium, Nickel, Brass, Copper, Tungsten Steel and
composites---
The above listed
materials may be blasted and/or cleaned (per SS8752) and pre-bond primer
applied within 1 hour. (Please call for additional materials not
previously listed.)
The most utilized primers
at Poly-Metal Finishing Inc. are (but not limited to):
EC-3917, BR6747-1, and BR-127
primers.
Poly-Metal Finishing Inc. may not
stock your specific primer but may be able to prepare your material and
apply primer, supplied by you the customer, to your desired
specifications and/or requirements.
Other services provided by Poly-Metal Finishing Inc.:
- FPL etching
and pre-bond prime
- Phosphoric
Anodizing of Aluminum parts (on a limited basis)
- Vapor
Blasting of materials to Sikorsky Specifications
- Masking of parts:
Poly-Metal Finishing
Inc. offers excellent masking services. Parts which require pre-bond
primer, may be masked to provide bare,
alodine, or chromic surfaces in specified areas.
Poly-Metal Finishing
Inc. utilizes Sikorsky specifications on overhaul and repair parts. Local
areas or entire parts (when prepared properly) may be Chromic Acid
Anodized, cleaned, or alodined and then pre-bond primer applied.
(please note that Aluminum parts containing dissimilar metals such as
steel helicoils, bushings, etc. can be masked using the best techniques,
but can only be done at the customers risk with a signed waiver.)
Poly-Metal Finishing
Inc. supplies 2 types of test panels to bonding houses.
- 3 Finger
Panels per SS9226 Type III chromic anodized and primed with EC-3917
primer on 1 side
- 1” X 6”
T-Peel Coupons per SS9226 Type IV chromic anodized and primed 1 side
Tank Sizes and Blasting Capabilities:
Please call with your
size requirement needs.
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