TECHNICAL ANSWER
What is the chemistry for Prokol ProFix?
MS Hybrid Polymer (QT6). 1-component, isocyanate-free, odourless.
PROKOL PROFIX · LOCAL ROOF LEAK REPAIR
A fast repair route for the leak you can actually locate.
ProFix is the local repair option in the SprayMyCladding system family: a ready-to-use one-component MS Hybrid Polymer product for fast temporary roof leak repair. Use it for the defect — not as an excuse to ignore a roof that needs wider investigation or refurbishment.
Technology
1-component MS Hybrid Polymer (QT6)
Colour
Dark grey / approx. RAL 7024
Packs
4 kg (18060-2) · 11 kg (18060-10)
Mixing
Single component — no mixing
QUICK ANSWER 1
Is ProFix a permanent roof replacement system?
No. Prokol describes it as a product used for fast and temporary repair of roof leaks.
QUICK ANSWER 2
What technology is ProFix based on?
ProFix is based on high-quality MS Hybrid Polymer with Prokol's QT6 technology. It is one-component, isocyanate-free and odourless.
QUICK ANSWER 3
What size ProFix do you sell?
This shop sells the 4kg professional pack (article 18060-2). Prokol also lists an 11kg pack (18060-10).
QUICK ANSWER 4
When should I choose ProFix instead of HBS200?
Choose by defect and objective: ProFix is positioned for fast temporary local leak repair on details, penetrations and vertical surfaces. HBS200 is a high-build liquid waterproofing membrane for compatible gutters, seams and larger repair areas.
PROBLEM → SOLUTION
Where ProFix makes sense — and where it doesn't
Start with the defect, not the product name. That is the safest way to understand whether this system belongs on the job.
Local roof leak
A traced, local defect can be a sensible ProFix repair candidate where the surrounding substrate remains serviceable.
Rooflight perimeter leak
Useful for local waterproof detailing where the leak source is at a compatible rooflight junction and the unit itself is not structurally failed.
Penetration or fixing detail
A targeted route around compatible penetrations, supports and local interfaces after the actual ingress point has been identified.
Wet-weather reactive repair
ProFix is positioned for fast temporary roof-leak repair, making it relevant when immediate containment is needed before permanent works are planned.
Widespread roof failure
Not the answer. Repeated patches across a deteriorated roof usually indicate a wider refurbishment or replacement decision.
Structural or rotten substrate
Not the answer. Repair compound cannot restore lost structural integrity, failed decking or defective fixings.
ANSWER IN 30 SECONDS
What is Prokol ProFix?
ProFix is a pasty one-component, isocyanate-free sealant based on high-quality MS Hybrid Polymer with Prokol's QT6 technology. The manufacturer positions it for waterproofing complex roof details, penetrations, skylights and domes, and for repairing leaks on a wide range of substrates. It does not drip on vertical surfaces due to its high viscosity. It can be applied to lightly moist surfaces as a temporary repair — but avoid puddles and frozen surfaces.
BEST FIT
complex roof details, penetrations, skylights, domes and local leak repairs where a ready-to-use one-component product is needed, particularly where wet conditions or vertical surfaces make alternatives impractical.
WHERE IT FITS IN THE JOB
1
Locate the actual defect
Trace ingress and distinguish the local leak from wider membrane, drainage or structural failure.
2
Prepare the surface
The surface must be stable, clean and free of grease. Remove all loose components. Slightly moist is acceptable; avoid puddles and frozen surfaces.
3
Apply and reassess
Apply by roller, brush, trowel or putty knife at minimum 1 mm (1.45 kg/m²). Rain resistant after approx. 2 hours. Walkable after approx. 24 hours at 2 mm. Record and inspect as part of a wider maintenance strategy.
Suitable uses & substrates
Complex roof details, penetrations, skylights and domes
Waterproofing and local leak repair on a wide range of substrates
Horizontal or vertical surfaces — high viscosity prevents dripping
Lightly moist surfaces (temporary repair use)
EPDM, bitumen and PVC where adhesion test confirms suitability
Situations where a one-component product avoids on-site mixing
Do not use the product to hide the wrong problem
Prokol calls ProFix a temporary repair product; do not treat it as a permanent whole-roof membrane.
Do not process when rain is expected or apply to puddles or frozen surfaces.
Sufficient adhesion cannot be obtained on coal tar-containing surfaces.
It does not correct structural failure, rotten decking, failed fixings or drainage design.
Do not stir mechanically — avoid air ingress. Never dilute.
Large-area refurbishment requires a full system specification, not repeated local repairs.
TECHNICAL QUESTIONS & ANSWERS
Technical facts, answered in plain English.
Useful product data should answer a question, not sit in a wall of specification cards. These answers use the current technical information for Prokol ProFix.
TECHNICAL ANSWER
What is the colour for Prokol ProFix?
Dark grey / approx. RAL 7024. Liquid and cured colour.
TECHNICAL ANSWER
What is the density for Prokol ProFix?
1.45 kg/l. Liquid product.
TECHNICAL ANSWER
What is the volume solids for Prokol ProFix?
Approx. 98%. PDS typical value.
TECHNICAL ANSWER
What is the usage for Prokol ProFix?
1.45 kg/m²/mm. Minimum 1 mm layer thickness.
TECHNICAL ANSWER
What is the rain resistant for Prokol ProFix?
After approx. 2 hours. At 20°C and 65% RH.
TECHNICAL ANSWER
What is the walkable for Prokol ProFix?
After approx. 24 hours. At 2 mm, 20°C and 65% RH.
TECHNICAL ANSWER
What is the elongation for Prokol ProFix?
150%. DIN 53504 S2.
TECHNICAL ANSWER
What is the tensile strength for Prokol ProFix?
1.8 N/mm². DIN 53504 S2.
TECHNICAL ANSWER
What is the e-modulus for Prokol ProFix?
1.3 N/mm². DIN 53504 S2.
TECHNICAL ANSWER
What is the shore hardness for Prokol ProFix?
A40 ±5. DIN 53505.
TECHNICAL ANSWER
What is the shrinkage for Prokol ProFix?
<10%. DIN EN ISO 10563.
TECHNICAL ANSWER
What is the temperature resistance for Prokol ProFix?
-30 to +120°C. Cured membrane.
TECHNICAL ANSWER
What is the shelf life for Prokol ProFix?
At least 24 months. Stored cool, unopened, protected from frost.
TECHNICAL ANSWER
What is the processing temp. for Prokol ProFix?
+5 to +35°C. Substrate and ambient.
TECHNICAL ANSWER
What is the packs for Prokol ProFix?
4 kg (18060-2) · 11 kg (18060-10). Manufacturer packaging.
REAL APPLICATIONS
See the sort of details this product is used on.
STRAIGHT ANSWERS
The questions people actually ask about Prokol ProFix.
Is ProFix a permanent roof replacement system?
No. Prokol describes it as a product used for fast and temporary repair of roof leaks.
What technology is ProFix based on?
ProFix is based on high-quality MS Hybrid Polymer with Prokol's QT6 technology. It is one-component, isocyanate-free and odourless.
What size ProFix do you sell?
This shop sells the 4kg professional pack (article 18060-2). Prokol also lists an 11kg pack (18060-10).
When should I choose ProFix instead of HBS200?
Choose by defect and objective: ProFix is positioned for fast temporary local leak repair on details, penetrations and vertical surfaces. HBS200 is a high-build liquid waterproofing membrane for compatible gutters, seams and larger repair areas.
Can ProFix be applied to wet surfaces?
ProFix can be applied to lightly moist surfaces as a temporary repair measure. Avoid puddles and frozen surfaces. Do not process when rain is expected.
PROBLEM-LED ANSWERS
What problem are you actually trying to solve?
The technical facts are already above. These answers start with the leak, defect or site condition so it is clear when Prokol ProFix belongs in the solution — and when it does not.
I have an active leak around a rooflight and the surface is slightly damp — what can I use now?
ProFix is designed for local roof-leak repairs and complex details such as skylights and penetrations, and the manufacturer allows application to lightly moist surfaces as a temporary repair. Remove loose material, avoid puddles and frozen surfaces, and remember that the underlying cause still needs to be diagnosed.
Water is tracking around a pipe penetration — can ProFix seal the detail without replacing the whole roof?
It can be appropriate when the failure is genuinely local to the penetration and the surrounding substrate remains sound. If the leak is being caused by wider membrane failure, movement, rotten decking or defective roof design, a local ProFix patch is not the complete solution.
The roof is leaking during bad weather — can I use ProFix while it is raining?
Do not process it while rain is expected and do not apply into puddles. ProFix can tolerate lightly moist surfaces for a temporary repair, which makes it useful when conditions are less than ideal, but the surface still has to be stable and prepared.
I keep patching the same leak every few months — should I add more ProFix?
No. Repeated failure means the defect needs a wider investigation. ProFix is a fast local repair product; repeated patching should not replace diagnosis of failed membranes, drainage, movement, fixings or structural problems.
The leak is on a vertical upstand and normal liquid coating keeps running — is ProFix suitable?
This is one of the situations where its high viscosity is useful. ProFix is designed not to drip on vertical surfaces, making it relevant for upstands, penetrations and complex local details where a paste-like repair material is easier to control.
Can ProFix repair a perforated or structurally failed roof sheet?
No. A local waterproof repair compound cannot restore missing metal or structural capacity. Perforation, rotten decking, failed fixings or wider structural failure needs physical repair or replacement before waterproofing is considered complete.
How much ProFix do I need for a local repair area?
The manufacturer usage figure is 1.45 kg/m² per mm of thickness, with a minimum recommended layer thickness of 1 mm. For small details, measure the actual repair area rather than treating the pack size as a whole-roof coverage claim.
RELATED QUESTIONS & TOPICS
Problems and applications connected to this system
emergency roof leak repairtemporary roof repairwet weather roof repairProkol ProFix 4kgMS polymer roof repairindustrial roof leak repaircommercial roof emergency repairlocal roof waterproof repairreactive roof maintenance productroof leak repair compoundProFix RAL 7024ProFix QT6
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