TECHNICAL ANSWER
What is the technology for Prokol TopSpray 35?
2-component protective coating. Prokol protective coating system for suitable prepared substrates.
PROKOL TOPSPRAY 35 · CLADDING REFURBISHMENT
Bring tired commercial cladding back to life.
TopSpray 35 is the protective finish in the SprayMyCladding refurbishment route: restore colour, protect suitable metal cladding and extend service life without replacing sound panels unnecessarily. Preparation, corrosion treatment and local detailing come first.
Primary job
Protective cladding recoating
Colour
Wide RAL colour range
Warranty pathway
Up to 25 years, subject to specification
System role
Final protective finish after preparation
QUICK ANSWER 1
Can faded commercial cladding be recoated instead of replaced?
Often, yes, where the panels remain structurally sound and the retained coating can be prepared to accept the system. TopSpray 35 is the main protective colour finish in that refurbishment route.
QUICK ANSWER 2
Where does TopSpray 35 fit with UNI-RW and MonoSealant?
TopSpray 35 is the final protective finish. UNI-RW is used on suitably prepared exposed or corroded steel where the specification requires it; MonoSealant is used on compatible laps, joints and local flexible details where sealing is required before coating.
QUICK ANSWER 3
Can TopSpray 35 change the colour of a building?
Yes. A wide RAL colour choice makes it suitable for restoring the existing colour or changing the appearance of suitable cladding as part of the refurbishment programme.
QUICK ANSWER 4
Can TopSpray 35 provide a 25-year warranty?
There is a warranty pathway of up to 25 years subject to the actual substrate, preparation, agreed build-up, application quality and manufacturer approval. It is not an automatic warranty attached to a tin of coating.
PROBLEM → SOLUTION
Problems TopSpray 35 can solve — and the ones it cannot
Start with the defect, not the product name. That is the safest way to understand whether this system belongs on the job.
Faded or chalking cladding
A strong fit where the panels remain sound and the retained coating can be prepared for protective recoating and colour restoration.
Weathered plastisol coating
Can be part of a refurbishment route where the retained factory finish is compatible and adhesion remains suitable after preparation.
Cut-edge corrosion
Not a direct topcoat-only fix. Prepare the corrosion first and use UNI-RW on exposed steel where the specification requires it before TopSpray 35.
Open laps or failed joints
Do not spray over a moving defect. Compatible laps and joints may need MonoSealant or another detail repair before the main finish.
Perforated or structurally weak sheets
Not the answer. Coating cannot restore lost metal or structural capacity; repair or replacement comes first.
Fire, insulation or panel-construction upgrade
Not the answer. A protective coating does not change the panel assembly's fire classification, insulation value or structure.
ANSWER IN 30 SECONDS
What is Prokol TopSpray 35?
Prokol TopSpray 35 is a two-component protective coating used for the refurbishment of suitable commercial metal cladding and roof substrates. On SprayMyCladding it is the main finish stage: the retained coating and substrate are assessed and prepared first, exposed or corroded steel may require UNI-RW where specified, compatible failed laps or joints may require MonoSealant, then TopSpray 35 provides the protective colour finish. It is intended to extend the useful life and restore the appearance of sound existing cladding rather than replace panels that remain serviceable.
BEST FIT
faded, chalking or weathered profiled metal cladding and suitable pre-coated steel where the substrate remains structurally sound, the retained coating can be prepared to accept the system, and colour restoration plus long-term protective performance are the main objectives.
WHERE IT FITS IN THE JOB
1
Assess & prepare
Confirm the cladding is refurbishable, clean and prepare the retained coating, and remove defective material rather than coating over it.
2
Treat defects
Prepare cut-edge corrosion and exposed steel; use UNI-RW where the specification requires a rust-inhibiting primer. Seal compatible failed laps or joints with the correct flexible detailing route.
3
Apply TopSpray 35
Apply the specified protective finish in the selected RAL colour to the required project build-up and environmental conditions.
Suitable uses & substrates
Faded and chalking commercial metal cladding
Weathered plastisol and compatible retained factory coatings after assessment
Profiled steel walls and suitable metal roof areas
Colour-change and rebranding projects on sound cladding
Warehouse, factory, logistics and retail cladding refurbishment
Projects seeking a manufacturer-backed warranty pathway where the full specification qualifies
Do not use the product to hide the wrong problem
Do not use coating to hide perforated or materially weakened sheets.
Cut-edge corrosion must be prepared and treated before the main finish; TopSpray 35 is not a rust-treatment shortcut.
Failed laps, joints, flashings and mechanical defects must be repaired rather than simply sprayed over.
Widespread retained-coating delamination or failed adhesion requires remediation before recoating.
A coating does not change the fire classification, insulation value or structural capacity of the panel assembly.
Warranty availability depends on the complete specification, preparation, application records and manufacturer requirements — not product purchase alone.
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 TopSpray 35.
TECHNICAL ANSWER
What is the finish for Prokol TopSpray 35?
Eggshell. Protective finish for commercial roof and cladding refurbishment.
TECHNICAL ANSWER
What is the colour choice for Prokol TopSpray 35?
Wide RAL range. Project colour choice subject to current manufacturer availability.
TECHNICAL ANSWER
What is the warranty pathway for Prokol TopSpray 35?
Up to 25 years. Subject to substrate condition, specification and manufacturer approval.
TECHNICAL ANSWER
What is the application for Prokol TopSpray 35?
Spray applied. Apply to the agreed preparation and film-build requirements.
TECHNICAL ANSWER
What is the system position for Prokol TopSpray 35?
Protective finish stage. Used after required cleaning, corrosion preparation, priming and detailing.
REAL APPLICATIONS
See the sort of details this product is used on.
STRAIGHT ANSWERS
The questions people actually ask about Prokol TopSpray 35.
Can faded commercial cladding be recoated instead of replaced?
Often, yes, where the panels remain structurally sound and the retained coating can be prepared to accept the system. TopSpray 35 is the main protective colour finish in that refurbishment route.
Where does TopSpray 35 fit with UNI-RW and MonoSealant?
TopSpray 35 is the final protective finish. UNI-RW is used on suitably prepared exposed or corroded steel where the specification requires it; MonoSealant is used on compatible laps, joints and local flexible details where sealing is required before coating.
Can TopSpray 35 change the colour of a building?
Yes. A wide RAL colour choice makes it suitable for restoring the existing colour or changing the appearance of suitable cladding as part of the refurbishment programme.
Can TopSpray 35 provide a 25-year warranty?
There is a warranty pathway of up to 25 years subject to the actual substrate, preparation, agreed build-up, application quality and manufacturer approval. It is not an automatic warranty attached to a tin of coating.
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 TopSpray 35 belongs in the solution — and when it does not.
My cladding has faded badly but the panels are still sound — do I really need to replace them?
Not necessarily. Fading and chalking can be refurbishment triggers rather than replacement triggers. If the retained coating can be prepared and the metal substrate remains sound, TopSpray 35 may be specified to restore colour and protective performance. Perforation, structural failure or an unsound retained coating changes the decision.
The building needs a complete colour change for a rebrand — can TopSpray 35 do that without new cladding?
Yes, where the existing cladding is suitable for recoating. TopSpray 35 can be supplied in a wide RAL colour range, making it relevant for colour restoration or a planned colour change without replacing sound panels. The substrate and existing coating still need to pass the preparation and compatibility checks first.
There is cut-edge corrosion at the sheet ends — can I just spray TopSpray 35 over it?
No. Cut-edge corrosion has to be treated as a preparation defect before the main finish. Loose corrosion and failed coating are removed, the exposed steel is prepared, and a rust-inhibiting primer such as UNI-RW may be required where specified. TopSpray 35 is the protective finish, not a shortcut around corrosion treatment.
The previous coating is peeling and blistering — can TopSpray 35 go over the top?
Only if the remaining coating can be shown to be sound and compatible after preparation. Widespread delamination or poor adhesion means the new finish would be relying on a failed layer beneath it. That needs to be resolved before TopSpray 35 is specified.
Water is getting in through laps and joints — will TopSpray 35 seal the leak by itself?
Do not rely on the main coating to solve a moving or failed joint. The leak source should be traced first. Compatible laps and joints may need MonoSealant before the main recoating stage. Structural gaps, failed flashings or perforated sheets require their own repair route.
Some roof or cladding sheets are perforated — can TopSpray 35 save them?
No. A coating cannot restore missing metal or structural capacity. Perforated or materially weakened sheets need local repair or replacement before a protective coating system is considered.
We have a live warehouse and cannot shut operations down — is refurbishment still realistic?
Often, yes. Cladding recoating is normally carried out externally and can be phased around site access, loading bays and operational constraints. The programme depends on access, weather and preparation, but it is generally less disruptive than wholesale cladding replacement.
I want a long warranty rather than another short repaint — what changes?
A warranty pathway is a specification issue, not just a product choice. TopSpray 35 can offer warranty pathways of up to 25 years subject to substrate condition, preparation, agreed build-up, application records and manufacturer approval.
Should I use TopSpray 35 or a waterproofing membrane such as SprayGrade?
Start with the problem. TopSpray 35 is the stronger fit when the main objective is protective recoating, colour restoration and long-term appearance on suitable metal cladding or roof substrates. SprayGrade is primarily a waterproofing membrane for suitable large-area roof and encapsulation work.
The cladding looks poor but I do not know whether it is fading, chalking or coating failure — what should I do first?
Do not choose the coating from appearance alone. Check retained-coating adhesion, substrate condition, corrosion, laps, fixings and water-ingress routes first. That diagnosis determines whether TopSpray 35 is suitable and what preparation or local repairs are required.
RELATED QUESTIONS & TOPICS
Problems and applications connected to this system
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