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Cromar PRO GRP Resin is a cold applied polyester resin designed specifically for Roofing Applications. Easy to form around complex situations, Pro GRP Resin is durable and able to resist foot traffic, an essential component in roofing systems.
- Very low styrene emission
- Low viscosity allowing rapid and efficient fibre wet-out
- Long pot life combined with rapid cure
- Superior mechanical properties
- Pre-promoted
- Thixotropic
- Part of the Cromar Pro GRP Roofing System
Description
Cromar PRO GRP Resin is a pre-promoted, thixotropic, medium reactive polyester resin designed specifically for Roofing Applications and formulated to give extremely low styrene emission. Cold applied and easy to form around complex situations, Pro GRP Resin is durable and able to resist foot traffic, an essential component in roofing systems.
What is PRO GRP?
GRP stands for Glass Reinforced Polyester and is also known as Glass-Fibre.
This system is cold applied on site, giving it a seamless and flexible weatherproof finish that resists water, heat and frost.
The resulting surface gives a strong architectural finish that looks very impressive. If maintained properly it will last as long as the building stands.
Cromar have developed this technology further to produce the perfect all weather protection for any flat roof. PRO GRP can be applied in small domestic situations right through to large industrial environments.
Benefits of a GRP System
- COLD APPLIED - no heat required
- EASY TO FORM - around complex situations
- VERY DURABLE - resists heavy foot traffic
- NON-SLIP WALKWAYS - can be incorporated
- CLASS LEADING ROOFING SOLUTION - that far exceeds traditional methods
- VIRTUALLY MAINTENANCE FREE - for very long periods of time
- IMPACT RESISTANT - due to its ultra hard finish
- FIRE RETARDANT
- HIGHLY ECONOMICAL SOLUTION
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Features & Benefits
- Very low styrene emission
- Low viscosity allowing rapid and efficient fibre wet-out
- Long pot life combined with rapid cure
- Superior mechanical properties
- Cold applied
- Pre-promoted
- Thixotropic
- Specifically for Roofing Applications
- Easy to form around complex situations
- Durable and able to resist foot traffic
- Part of the Cromar Pro GRP Roofing System
Application
For full application instructions download the PRO GRP Installation Guide.
Coverage
The values above are recommended coverage rates for estimating purposes we would recommend coverage rates or 1.5kg/m2 for resin, and 0.5 kg/m2 for top coat.
Temperature / Catalyst Required
Note: These temperature breaks are approximate. Always test catalyst additions with your first mix and adjust up or down as required.
Summer / Winter
Cromar DO NOT recommend laminating in temperatures below 5℃ and above 35℃ ambient temperature, please consult our technical department on 0113 2455450 (option 2) or send a message to [email protected].
Typical Properties
Physical Data in Liquid State at 25°C
| Test | Units of Measure | Nominal |
|---|---|---|
| Viscosity; Brookfield LV3 @ 60 rpm | cps | 450 |
| Thixotropic Index; 6/60 | - | 3.25 |
| Styrene Content | % | 41 |
| Gel Time; 100g 1.25% catalyst | minutes | 14 |
| Peak Exotherm | oC | 110 |
Mechanical Data in the Cured State
| Test | Units of Measure | Nominal | Test Method |
|---|---|---|---|
| Tensile Strength | MPa | 79 | ISO 527-1 |
| Tensile Modulus | GPa | 4.1 | ISO 527-1 |
| Tensile Elongation | % | 2.5 | ISO 527-1 |
| Flexural Strength | MPa | 105 | ISO 178 |
| Flexural Modulus | GPa | 4.2 | ISO 178 |
| Heat Distortion Temperature | °C | 74 | ISO 75-A |
Storage
Resins are stable for six months from date of production when stored in the original containers away from sunlight at no more than 21°C. After extended storage, some drift may occur in gel time.
During the hot summer months, no more than two months stability at 30°C should be anticipated.
Product Details
5259-867275
Data sheet
- Manufacturer
- Cromar
- Interior / Exterior Use
- Exterior Use
- Water / Solvent Based
- Solvent
- Application Method
- Brush, Roller
- Single, Two or Three Pack
- Single
- Pack Size
- 10KG, 20KG
- Coverage
- 1.5kg/m2
- Max. Application Temperature
- 35℃
- Min. Application Temperature
- 5℃
- Shelf Life (from date of manufacture)
- 6 months
- UN Number
- UN1866
- Suitable For Use On
- Roofs
- Application Method
- Brush
- Application Method
- Roller
- Product Usage Type
- Repair
- Product Range
- Pro GRP
Questions
Question about the product
pblanch
on
2023-05-26 14:31:17
| Question:
can i use it on brickweave |
Answer from Rawlins’ Technical Team:
This product is designed for roofing applications when used as part of a Cromar Pro GRP Roofing System not for use on brick weave paths or driveways. You could consider Hydron Mona-Guard Block Paving Sealer. | |
IMPORTANT SHIPPING & DELIVERY INFORMATION
Cromar PRO GRP Resin is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
All delivery costs below are excluding VAT
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