Formula for Lanolin and Alcohol Case Lubricant in Reloading
A common and effective DIY case lube for reloading uses
liquid lanolin and
99% isopropyl alcohol. The alcohol helps dissolve and evenly distribute the lanolin, while the lanolin provides a protective film on the case to prevent corrosion and sticking during sizing.
Recommended Ratios
- 1:4 to 1:5 ratio (1 part liquid lanolin : 4–5 parts 99% isopropyl alcohol) is widely used and works well Predator Masters+1.
Example: 4 oz liquid lanolin + 16–20 oz 99% isopropyl alcohol.
- Some reloaders prefer 12:1 (12 parts alcohol : 1 part lanolin) for a thinner, less gummy feel Ammo Guru+1.
- Others use 10:1 to 16:1 depending on desired tackiness and ease of cleaning ar15.com.
Preparation Steps
- Gather supplies:
- Liquid lanolin (pure, no additives)
- 99% isopropyl alcohol (not 70% rubbing alcohol or 91% with high water content)
- Spray bottle with measurement markings
- Small bowl or cup
- Warm water (for warming ingredients) Ammo Guru+1
- Warm the ingredients(optional but helpful):
- Place the lanolin bottle in warm water (~105–110°F) for several minutes to soften it.
- Warm the alcohol bottle in the same water bath.
- Do not heat over an open flame — isopropyl alcohol is highly flammable Predator Masters+1.
- Mix:
- Pour the alcohol into the spray bottle first.
- Add the measured lanolin (e.g., 1 oz for 12 oz alcohol if using 12:1 ratio).
- Mix thoroughly. If using a 1:4–1:5 ratio, add more alcohol to reach the target volume.
- Cool and store:
- Let the mixture cool to room temperature, mixing occasionally as it cools.
- Store in an airtight container to prevent water absorption from the air Predator Masters+1.
Application Tips
- Apply a light, even coat to cases before sizing.
- Let the alcohol evaporate (~5 minutes) before resizing Predator Masters.
- Properly lubed cases should feel slightly greasy but not slimy.
- Use sparingly — the lube can stay tacky for a long time Shooters' Forum.
Example DIY batch (12:1 ratio):
- 12 oz 99% isopropyl alcohol
- 1 oz liquid lanolin
- Mix in a spray bottle, let cool, and store.
This method is inexpensive, effective, and avoids the mess of commercial lubes while providing good corrosion protection and smooth sizing
Ammo Guru+2.