2-Part PUR Resin Self Smoothing Screed and Seal Coat MDW-SK325SL
2-Part PUR Resin Self Smoothing Screed and Seal Coat MDW-SK325SL
It is a two-part solvent-free colored self-smoothing PUR resin with tough-elastic properties
Uses
Smooth wearing course with crack-bridging properties for industrial floors in production and storage facilities, workshops, etc.
Broadcast wearing course with crack-bridging properties for wet working areas (food and beverage industry etc.), car park decks and loading ramps, etc.
Seal coat for broadcast systems
Can be subjected to normal to medium-heavy mechanical and chemical stress
Characteristics / Advantages
Flexible and tough-elastic
Crack-bridging
Good chemical and mechanical resistance
Slip-resistant surface possible
Liquid proof
Easy to apply
Easy to clean
Economical
Solvent-free
Product Data
Form
Appearance / Colours
Resin - part A: coloured, liquid
Hardener - part B: brownish, liquid
8 Standard colors available: RAL1013, RAL3009, RAL6010, RAL7030, RAL7037, RAL7038, RAL7040, RAL7042
Under direct sun radiation, there will be discoloration and color deviation; this has no influence on the function and performance of the coating.
Application steps and the use of different batch numbers during one project lead to a slight color variation. For areas with aesthetic requirements, the use of Sikafloor® -359 N as a seal coat is recommended.
Packaging
Part A: 18.3 kg containers
Part B: 6.7 kg containers
Part A+B: 25 kg ready to mix units
Storage
Storage Conditions / Shelf-Life
12 months from the date of production if stored properly in original, unopened, and undamaged sealed packaging, in dry conditions at temperatures between +5℃ and +30°C.
Technical Data
Chemical Base: Polyurethane (PUR)
Density
Part A: 1.24kg/l
Part B: 1.24 kg/l (DIN EN ISO 2811-1)
Mixed Resin (unfilled): 1.24 kg/l
Mixed Resin (filled 1:0.7) 1.6 kg/l
All Density values at +23°C
Solid Content
~ 100% (by volume) / ~ 100% (by weight)
Mechanical / Physical Properties
Compressive Strength
Resin: ~ 70 N/mm2 (after 28 days at +23°C) (EN 196-1)
Flexural Strength
Resin: ~ 40 N/mm2 (after 28 days at +23°C) (EN 196-1)
Tensile Strength
Resin: ~ 20 N/mm² (after 28 days, at +23°C) (DIN 53504)
Resin filled (1 : 0.7): ~ 20 N/mm² (after 28 days, at +23°C)
Bond Strength:> 1.5 N/mm2 (failure in concrete) (EN 4624)
Tear Strength
Resin: ~ 49 N/mm² (after 28 days, at +23°C) (DIN 53504)
Resin filled (1 : 0.7): ~ 33 N/mm² (after 28days, at +23°C)
Shore D Hardness: Resin: 73 (28 days / +23°C / 50% r.h) (DIN 53505)
Elongation at Break
Resin: ~ 40% (14 days / +23°C / 50% r.h) (DIN 53504)
Resin filled (1 : 0.7): ~ 19% (14 days / +23°C / 50% r.h)
Abrasion Resistance
Resin: 55 mg (CS 10/1000/1000) (ASTM D 4060)
Crack Bridging Capacity 0.6 mm (static loading, 28 days / +23°C)
Resistance
Chemical Resistance: Resistant to many chemicals. Please ask for a detailed chemical resistance table.
Application Details
Consumption / Dosage
Coating System | Product | Consumption |
Primer | 1-2 x Sikafoor-1 56/-161 | 1-2x 0.3 -0.5 kg/m2 |
Leveling (optional) | Sikloor-156/-161 leveling mortar | Refer to PDS of Skaooo 156/-161 |
Self-smoothing system 1.5- 2.0 mm | 1 pbw Skilfoo-325 SL 0.7 pbw quartz sand (Sikadur 505Q) | 1.60 kg/m2 mixture (0.94 kg/m2 binder + 0.66 kg/m2 quartz sand) per mm layer thickness |
Broadcast system approx. 3 mm (single layer system): | 1 pbw Skalfoo-325 SL 0.7 pbw quartz sand (Sikadur 505Q) + broadcast quartz sand 0.4-0.7 mm + 1-2 xSeal coat Sialooo-~ 325 SL or Sikafoor-359 N | 1.60 kg/m2 mixture (0.94 kg/m2 binder + 0.66 kg/m2 quartz sand) ~ 4.0 kg/m2 ~ 0.7 kg/m2 |
Broadcast: system approx. 4 mm (2- layers system with improved crack bridging properties) | 1 pbw Sialoo-325 SL 0.7 pbw quartz sand (Sikadur 505Q) + Sikafloor-325 SL + broadcast quartz sand 0.4-0.7 mm + 1-2x Seal coat Sikaooro 325 SL or Sikafoor-359 N | ~2.50 kg/m2 mixture (1.47 kg/m2 binder +t 1.03 kg/m2 quartz sand) 1.20 kg/m ~ 4.0 kg/m2 ~ 0.7 kg/ m2 |
For application on inclined surfaces | Inclination (%) 0-2.5 2.5-5.0 5.0- 10.0 10-15 15- 20 | Extender T (wt.-%, related to resin at +20°C) 1 2 2.5 3 |
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