Redsun Solution Large

 What “Red Sun Solution Large” actually is

Red Sun Rubber Solution Large is a vulcanizing rubber cement used to permanently bond patches to inner tubes.

It’s the larger tube version of the same adhesive used in standard bike repair kits.

 Key details (clarified)

• Type: Vulcanizing rubber solution (not regular glue)
• Function: Chemically bonds patch + tube rubber
• Typical size: ~20cc (varies slightly by batch/packaging)
• Common use: Bicycle inner tube repair, also light motorcycle/utility use

 How it works

It doesn’t just “stick” the patch on:

• It softens the rubber surface
• The patch and tube vulcanize (fuse together)
• Result = airtight, long-lasting repair

 Pricing (South Africa reality)

Your range is reasonable:

• Usually around R10–R15 retail
• Sometimes bundled in kits (so price is effectively lower)

 “Large vs Small” version

 “Large” simply means more repairs per tube, not stronger glue.

 Pros

• Strong, permanent repairs when used correctly
• Cheap and widely available in SA
• Works with most patch types (round, strip, etc.)
• Reliable for MTB and road tubes

 Cons

• Dries out after opening if not sealed properly
• Messy if over-applied
• Needs prep time (sand + wait until tacky)

 Important practical tip

The success of the repair depends more on technique than brand:

• Light sanding = critical
• Thin layer only
• Wait until it’s tacky, not wet
• Firm pressure = best bond

 Bottom line

Your summary is correct:

 Red Sun Solution Large is a ~20cc vulcanizing rubber cement used in bicycle and vehicle tube repair kits, commonly sold in South Africa as a more economical “workshop-size” version of the 10cc tube.