01
Fully waterproof
Holds through swimming, watersports, and full immersion. No lifting at the edges from contact with water.
Why It Works
Maximum hold. For swimming, sport, and total security.
HRC Extreme Adhesive is the maximum-hold bond in the HRC range. Fully waterproof, built for swimming, watersports, and clients who need absolute confidence in the bond. Used by HRC specialists where every other adhesive would compromise — and the longest wear time across the range.
02
Longest wear in the range
Up to 4 weeks of wear is achievable with careful prep and maintenance — the longest interval between refits available with HRC adhesives.
03
Maximum security
For clients who simply don't want to think about the bond. Uncompromising hold across any activity, any weather.
How To Use
Step-by-step application.
Get the best results out of every bottle. Used correctly, this is the formula HRC specialists rely on for daily fits and refits across 36 locations.
01
Prepare the scalp with HRC Scalp Protector and allow to dry fully.
02
Apply a thin, even layer of Extreme Adhesive along the bond line.
03
Allow 90–120 seconds tack time — Extreme needs the longest cure.
04
Press firmly along the bond line and hold for 60 seconds.
Specifications
The details.
Made in the UK. Shipped within 24 hours. Free shipping over £50. Used daily by HRC specialists worldwide.
- Hold strength
- Maximum / Waterproof
- Wear time
- Up to 4 weeks
- Compatible with
- All HRC system bases
- Sizes
- 36ml & 148ml
Common Questions
Anything we’ve missed?
Who should use Extreme?
Anyone who swims regularly, plays watersports, or simply wants the longest possible time between refits.
Is it harder to remove?
It needs the most dwell time with the remover — typically 60–90 seconds. The process is the same, just allow extra time.
Will it irritate my scalp?
Always use HRC Scalp Protector under Extreme, especially for clients with any sensitivity. The bond is strong, so the prep matters more.
Can I use this every refit?
Yes — there's no limit. Many active clients use Extreme as their everyday bond.
Trusted by 500+ HRC professionals
Used daily by HRC specialists. Now in your kit.
Same products our specialists use across 36 locations. Order today, ships within 24 hours from our UK warehouse.