Krypton ProLine CH55: Chemical-Resistant Pure Polyurea for Containment
Krypton ProLine CH55 is a chemical-resistant pure polyurea membrane with excellent resistance to chemicals and moisture, built for primary and secondary containment, immersion service and blast mitigation.
- Product: Krypton ProLine CH55
- Application: protective and containment coating
- Mix: A=1 : B=1.12 by weight / 1:1 by volume
- Gel time: 6 s at 25 °C
- Colours: grey RAL 7001 and 7011, tile red, beige RAL 1001, blue RAL 5015
Any thickness in a single coat, flexible over a wide temperature range, and extremely fast curing.
01 · Uses
Uses of a chemical-resistant pure polyurea coating
- Protective layer to reinforce structures and reduce damage from explosions.
- Lining of tanks holding chemical liquids or liquids with a high solids content.
- Secondary containment basins exposed to chemical spills.
- Buried pipes, even in very wet or chemically aggressive soils.
- Pipes exposed to sand abrasion.
- Rehabilitation of leaking concrete tanks or substrates subject to movement.
- Improved load sliding where required.
- Very long-life protection of steel structures, and protection of expanded polystyrene (EPS) structures.
Related reading: ProLine CH55 pipe lining, ProLine containment in oil and gas and our CH55 pipe coatings application page.
02 · Application
Application and key properties
High resistance to impact, puncture, compression, abrasion and blast, very good chemical resistance, and very low permeability to gases including radon, methane and CO₂.
Mix ratio is A=1 : B=1.12 by weight (1:1 by volume). Gel time is 6 s at 25 °C and 4 s at 60 °C. Substrate temperature must be between 5 °C and 40 °C and at least 3 °C above the dew point. Minimum coverage is 2 kg/m² and minimum spray pressure 155 bar.
Shore D hardness builds to 35 after 5 min, 43 after 45 min, 50 after 6 h and 55 after 24 h under the test conditions given in the datasheet.
Technical datasheet: Krypton ProLine CH55 TDS (PDF) · Polyurea waterproofing systems
03 · Technical data
Krypton ProLine CH55 technical data (TDS values)
Max. elongation
450%
Tensile strength
25 MPa
Shore hardness
55 D
Tear strength
100 N/mm
Technical data
- Shore hardness: 55 D (± 5)
- Max. elongation: 450%
- Tensile strength: 25 MPa (UNE EN ISO 527-1/3)
- Tear strength: 100 N/mm (ISO 34-1, method B)
- Compressive strength: 130 MPa (UNE EN ISO 604:2003)
- Abrasion: 13 mg (Taber, CS17, 1000 c, 1 kg)
- Impact: 24.5 N·m, Class III > 20 N·m (EN ISO 6272-1)
- Dielectric strength: 28.9 kV/mm (IEC EN 60243-1:2013)
- Watertight at 5 bar, 50 m water column (UNE EN 12390-8)
- VICAT: 130 °C (EN ISO 306:2011)
Approvals
- C5H and C5VH system certified to ISO 12944-6:2018
- Continuous immersion Im2 and Im3 (sea water, brackish water, soil), very high durability VH, ISO 12944-6:2018
- CO₂ permeability determined to UNE-EN 1062-6:2003
- CE marking to EN 1504-2 for concrete protection, certificate 0370-CPR-2247
04 · Performance
Krypton ProLine CH55 performance
Shore hardness is 55 D (± 5), maximum elongation 450%, tensile strength 25 MPa and tear strength 100 N/mm. The radon diffusion coefficient is 8 × 10⁻¹² m²/s and methane permeability 140 Ncm³·mm/(m²·day·bar). CO₂ permeability is μ = 50,484, with Sd > 50 when the coating is thicker than 1 mm.
Adhesion is 2.5 MPa on concrete and ≥ 8 MPa on steel. Taber abrasion is 13 mg (CS17, 1000 c, 1 kg), impact resistance 24.5 N·m (Class III), dielectric strength 28.9 kV/mm, and static crack-bridging class A5 at -20 °C.
Application data
- Mix ratio: A=1, B=1.12 by weight; A=1, B=1 by volume
- Gel time (A+B, 20 g): 6 s at 25 °C, 4 s at 60 °C
- Substrate temperature: 5–40 °C and 3 °C above dew point
- Minimum coverage: 2 kg/m²
- Minimum spray pressure: 155 bar
- Hose heating: 70 °C
05 · FAQ
Krypton ProLine CH55: frequently asked questions
What is Krypton ProLine CH55 used for?
Chemical containment and tank linings, buried and abrasion-exposed pipes, blast mitigation, and long-life protection of steel and EPS structures.
Which corrosion categories does it cover?
It is certified to ISO 12944-6:2018 for C5H and C5VH, and for continuous immersion Im2 and Im3 with very high (VH) durability.
Can it act as a gas barrier?
Yes. The datasheet gives a radon diffusion coefficient of 8 × 10⁻¹² m²/s and methane permeability of 140 Ncm³·mm/(m²·day·bar).
More Impermax and Rayston polyurea products
Every product page in this series is based on its official Krypton Chemical technical datasheet.
Links
Next steps
Distributors
Get in touch about the supply and application of Krypton ProLine CH55.
Knowledge
Contact
For technical enquiries, please use the Distributors button above.