I transformed my warm and reliable, but waterproof as a sponge, thermal lined rigid duck jacket from Dickies and turned it into my go-to stay dry and stay warm jacket. The coating is starting to wear to a leather like shine and looks better every day.
There is a great 'ible for tincloth - a similar coating made with Linseed Oil and Beeswax - and commercially available Otter Wax and 'ible for using commercially available wax to waterproof a Carhartt coat. This recipe and technique gives the best of both recipes and can be used not only on new fabric items but to refresh old ones, condition and protect leather, repair squeaking drawers, and help lubricate screws. It is, however, terrible on toast and too thick to use as a mustache wax.
Step 1: What You Need
4 oz. Paraffin Wax (aka Household Wax, aka Canning Wax) (1 lb Gulfwax $7.25 on Amazon Prime)
4 oz Beeswax Pellets (1 lb Organic $12.39, or 4 oz for $6.87)
(3) 3 oz Paper Cups - Optional (100 White Paper Water Water Cups $6.66)
Containers and Equipment
Double Boiler ('ible) - You can also attempt to use your microwave, crock pot, or candle wax heater
Disposable Paintbrush - 1/2" - 1 1/2" (only needed for Heavy Duty coating)
Heat Gun - You can use a propane torch (like I did), or a blow drier (takes FOREVER) in a pinch.
Funnel - Optional
Cupcake Tin - Optional
Step 2: Measure Twice - Cut Once
- Place an empty container on your scale
- Zero Out your scale
- Add 4 oz of Beeswax Pellets to the container
- Empty pellets into to container of double boiler
- Remove container and Re-Zero your scale
- If using gulf wax, it should be in 1/4 lb. slices, break one off and verify weight
- On a cutting board, chop the 4 oz of wax into small chunks
- Add Paraffin Chunks to double Boiler top container
Step 3: It's Getting Hot in Here
- Bring water in double boiler to a boil over high heat
- Reduce temp to maintain boil
- Place top container are to start melting wax
- Stir wax frequently with spatula until all chunks are melted
Step 4: Save for a Rainy Day
When you are ready to apply just peel away the bottom and rub on your material in a thin, even coat. Once the wax is applied go over with a heat gun or torch on a low setting, or your blow drier on high. You can finish everything off with an iron covered in foil.
Step 5: Thick and Heavy
- Using a paint brush paint an even, thick layer of melted wax one in small sections
- repeat until entire jacket is coated
- Using Heat gun/Torch on a low setting (or blow dryer on high if you are a masochist) melt wax into jacket
- Allow to cool and check for uneven areas
- If needed apply a second coat and re-heat
- A quick ironing with a foil covered iron will help even everything out and soak wax deeper in the fabric
If you wear it regularly and rely on this gear to keep you dry you will want to recoat the seams a few times a year. With proper maintenance though you can turn a department store work wear jacket, or cheap messenger back into an heirloom that will keep you grand kids (or their stuff) dry.