Aircraft Spruce & Specialty Co.
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Overview
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An ultra lightweight corrosion-inhibiting filler for aircraft, marine, and automotive use. Adheres to composites, bare aluminum, steel, and bare or varnished wood.
Epoxy resin with non-MDA hardener. Ships non-hazardous. Apply EP-420 Epoxy Primer directly over SuperFil. Superfil is an ultra-lightweight epoxy filler for rough fill and contouring. Comes in two containers. Mix, apply with a squeegee, and let dry overnight. More consistent than hand-mixed micros. Weighs only 3.8 lbs. per gallon. 1 Quart Kit (12 oz. Hardener + 20 oz. Resin) 3 Gallon Kit (1 gal. Hardener + 2 gal. Resin) HAZARDOUS |
Features
- Composite Filling:
- Use as you would an epoxy micro slurry. Mix by the weight for the best results. Scuff-sand smooth surfaces before application. Trowel or squeegee to desired thickness. After drying, sand to shape and finish. Works as an excellent filled material.
- Bare Aluminum:
- Scruff surface with a Scotch-Brite pad. Treat bare aluminum with E-2300 Conversion Coating prior to application. Apply EP-420 Primer directly over dried SuperFill.
- Bare Steel:
- Clean off all rust and oil, and wipe with C-2200 Meti-Sol.
- Varnished or Bare Wood:
- Scuff-sand and clean as necessary. EV-400 Epoxy Varnish may be applied directly over SuperFill.
Specifications
- By Weight (preferred): 2 parts A to 1 part B
- By Volume: 2 parts A to 1 part B.
- Thoroughly stir each individual container of part A and part B before combining. Resin or hardener can separate from fillers during storage. After combining parts A and B scape the sides of the Revision on 21 mixing container to insure a through blend. Mix o a consistent high color blue color.
- Cure: Allow to cure at 70° or above for best results. Lower temperatures will lengthen the cure time
- Dry Film Cure: 8 hours at 77°
- Cure to Sand: 12 hours at 77°
- Pot Life: One hour at 77°
- Clean Up: MEK before curing occurs
- Shelf Life: Twi years unopened. Avoid storage above 100°. Resin will separate from filler during storage. Remix thoroughly.
Documents
Reviews
I mainly use this for model aircraft but it’s sooo easy to apply and sand! Nice strength and no shrinkage…. An excellent product!
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POLY-FIBER SUPERFIL EPOXY A&B
Fast Shiping great service
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POLY-FIBER SUPERFIL EPOXY A&B
5 stars
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POLY-FIBER SUPERFIL EPOXY A&B
Very good timing on the order. Great product. Its light and sands very well.
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POLY-FIBER SUPERFIL EPOXY A&B
Delivered quickly and on time. Excellent product!
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POLY-FIBER SUPERFIL EPOXY A&B
excellent stable product
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POLY-FIBER SUPERFIL EPOXY A&B
I have used this product several times over the last 20 yrs. Easy to use, sand easily and it holds well.
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POLY-FIBER SUPERFIL EPOXY A&B
Ive used epoxy and micro balloons for a long time. I tried a quart of Super Fil several years ago and its so much easier to use. Stays where you put it, doesnt sag. The hardener does separate and needs to be mixed once in a while. This is my second quart that I use on model airplanes exclusively.
Great product fast delivery couldn’t be more pleased. Thank you
Fair price, easy to work with, very durable.
Q&A
Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
We have added the MSDS sheet to the "Documents" tab of this web page. Please review it there.
Yes. It is an epoxy base filler and adheres very well to aluminum, wood, and composites.
Superfil is an epoxy base material and will not shrink or crack over time like polyester base fillers. The manufacturer does not list a max depth.
This is an epoxy base filler and adheres to many surfaces, but a slightly abraded surface is recommended for the best bond.
No, it is not necessary to remove the paint. Just be aware the Super-Fil will stick to the paint, so if the paint chips off the structure, so will the Super-Fil on it.
Yes, It will work on clean metal.
Per Vendor: It can be used as filler on metal, sure, but it should be primed over to seal it.
It is not normally used as an adhesive, so we have no data as to how well it will work.
This material has a 2 year shelf life in an un-opened container.
It should go underneath the varnish. The varnish should seal the superfil.
Per Poly-Fiber: We do not recommend thinning or diluting this product.
