Sikaflex® PRO-3 is a 1-part, polyurethane, tough, coloured, elastic joint sealant for sealing many joint configurations in floors and civil engineering structures. It provides a waterproof seal with good mechanical properties, is resistant to chemicals and remains elastic over a wide range of temperatures.

Usage

Horizontal and vertical interior and exterior sealing joint applications:

Food industry
Cleanrooms
Sewage treatment plants
Tunnels

Sealing horizontal and vertical joints for:

Floors
Pedestrian and traffic areas
Car park parking decks
Warehouse and production floor areas

Advantages

Movement capability ±35 %
Good mechanical and chemical resistance
Bubble-free curing
Over-paintable
Good adhesion to defined construction materials
Very low emissions

600 ml cylindrical foil pack

20 foil packs per box

Refer to the current price list for packaging variations

ENVIRONMENTAL INFORMATION

Conformity with LEED v4 EQc 2: Low-Emitting Materials
VOC emission classification GEV-Emicode EC1^PLUS, license number 3206/20.10.00

APPROVALS / STANDARDS

CE Marking and Declaration of Performance to EN 15651-4 – Sealants for non-structural use in joints in buildings – Sealants for pedestrian walkways. Classification: PW EXT-INT CC 25 HM
CE Marking and Declaration of Performance to EN 14188-2 – Joint fillers and sealants – Cold applied joint sealants
Chemical Resistance. DIN EN 14187, SKZ, Test report No. 127980/17-IV
Performance Test EN 15651-4, SKZ, Report, 94931/11-I-E
Biological Resistance, ISO 846, Fraunhofer, Certificate, No SI 1103-544
Cold applied sealants, EN 14188-2, SKZ, Report, No 94931/11-IV
Determination of staining, ASTM C 1248-04, SKZ, Report, No 98947/11-V
Determination of staining, ISO 16938-1, SKZ, Report, No 98947/11-II
ISO 11600 F-class 25 HM, SKZ, Report, No 94931/11-II
Standard specification for elastic joint sealants, ASTM C920-11 Class 35, ASTM, Report, No 0314920-SIKA
Migration behaviour EN 1186, EN 13130, CEN/TS 14234, ISEGA, Certificate No. 48644 U 18
Outgassing TVOC, CSM procedures, Fraunhofer, Certificate, No SI 1103-544
Resistance against diesel and jet fuel, DIBt Guidelines, SKZ, Test report No. 94931/11-V
Sealants in waste water systems, DIBt Guidelines, SKZ, Report, No 94931/11-III

Chemical Base

Polyurethane i-Cure® Technology

Shelf Life

15 months from date of production

Storage Conditions

The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +25 °C. Always refer to packaging.

Density

~1,35 kg/l

(ISO 1183-1)

Product Declaration

EN 15651-4: PW EXT-INT CC 25 HM

EN 14188-2 – Joint fillers and sealants – Cold applied joint sealants

Shore A Hardness

~37 (after 28 days)

(ISO 868)

Secant Tensile Modulus

~0,60 N/mm² at 100 % elongation (+23 °C)	(ISO 8339)
~1,10 N/mm² at 100 % elongation (−20 °C)

Elastic Recovery

~90 %

(ISO 7389)

Tear Propagation Resistance

~8,0 N/mm

(ISO 34)

Movement Capability

± 25 %	(ISO 9047)
± 35 %	(ASTM C 719)

Chemical Resistance

For chemical resistance refer to the following report: Chemical Resistance. DIN EN 14187, Sikaflex® PRO-3 (SL), SKZ, Report, 127980/17-IV

For resistance against water and salt water refer to the following report: Performance Test EN 15651-4, Sikaflex® PRO-3, SKZ, Report, 94931/11-I-E

Service Temperature

−40 °C to +70 °C

Joint Design

The joint width must be designed to suit the movement capability of the sealant. The joint width must be ≥ 10 mm and ≤ 40 mm. A width to depth ratio of 1:0,8 must be maintained (for exceptions, see table below).

Typical joint widths for joints between concrete elements for interior applications

Joint distance [m]	Minimum joint width [mm]	Minimum joint depth [mm]
2	10	10
4	10	10
6	10	10
8	15	12
10	18	15

Typical joint widths for joints between concrete elements for exterior applications

Joint distance [m]	Minimum joint width [mm]	Minimum joint depth [mm]
2	10	10
4	15	12
6	20	17
8	28	22
10	35	28

All joints must be correctly designed and dimensioned by the relevant standards and codes of practice before their construction. The basis for calculating the necessary joint widths are the type of structure, dimensions, technical values of the adjacent building materials, joint sealing material and the specific exposure of the building and the joints.

For larger joints, contact Sika ® Technical Services for additional information.

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