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Pentens lp 504 datasheet
Civil engineering (bff)
Universiti Tun Hussein Onn Malaysia
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PENTENS LP-
Low Pressure Epoxy Crack Injection System
PDS LP-504 05/17_V
Description
Semi-flexible and flexible sealants are usually the best solution for crack and joint-related problems. Nevertheless there are conditions where structural repair is necessary and specified. Structural strength is achieved by using PENTENS LP-504 Low Pressure Epoxy Crack Injection System. Due to the unique properties of this system, it is possible to inject epoxy deeply into concrete joints, hairline cracks and fissures. PENTENS LP-504 Low Pressure Epoxy Crack Injection System provides high bonding and compressive strength and it helps to restore cracked concrete to a complete monolithic piece. The low pressure injection method is more popular in epoxy resin injection and usually achieve good results.
Although most epoxy injection can be performed with single-component polyurethane injection equipment, it is recommended to use specialised epoxy injection gear to meet the specific material properties. The epoxy reacts within a certain gel time just by itself.
Uses
Areas of application include: ● Floor slabs ● Suspended floors ● Bridges ● Steel and iron ● Industrial construction ● Columns ● Prefabricated elements ● Small cavities ● Static cracks ● Basements and fountains
Advantages
■ Negative side application applicable. ■ Deep penetration into very small cracks. ■ Increases in volume to fill cavities and voids. ■ Non-flammable. ■ Easy mixing, convenient mixing ratio. ■ Does not create new cracks. ■ Non-toxic. ■ Non-shrinking. ■ High mechanical and adhesive strength.
Technical & Physical Data
Form Liquid Color Transparent Mixing Ratio A:B=2: Density 1 per litre Viscosity At 20°C : 300 cps At 30°C : 140 cps Limits -Minimum admissible substrate
admissible substrate
temperature 18°C
-Maximum temperature 43°C -Maximum crack width 3mm -Minimum crack width 0 (approximate)
Adhesive Strength
At 20°C, 65% RH,10 days Concrete: 3/mm² (concrete failure) Steel: 15N/mm² Tensile Strength 27N/mm² Curing Initial: 24 hours at 20°C Final:3 - 5 days at normal temperatures.
Pot Life At 20°C : 60 minutes At 30°C : 35 minutes At 40°C : 18 minutes
Shelf Life
Store in a cool, dry place. Packaging 15kg /set 30kg /set
(steel sand blasted)
Minimum 12 months in its original unopened containers.
Storage Condition
(A:B=10:5)
(A:B=20:10)
Registration Number: 028140 ISO 9001 : 2000 039
UFON NANO-CHEMICAL LTD. 8F, No, Lane 348, Sec 2, Chung-Shang Road, Chung Ho City, Taipei Hsien, Taiwan, R.O. Tel: +886 2 2240 0220 Fax: +886 2 2242 6536 URL: pentens E-mail: pentens@ms35.hinet
DONG JI (M) SDN. BHD. No, Jalan TPP 5/7, Taman Perindustrian Puchong, 47100 Puchong Selangor, Malaysia. Tel: +603 8060 4396 Fax: +603 8060 4394 URL: pentens.com E-mail: dji@pentens.com
Step 4 Make sure the sealant is cured before starting the injection. Mix PENTENS LP-504 (A:B= 2:1) and fill into the packer. Install the packer on the port and fit the rubber squeeze on the packer and start resin flow into the cracks.
Step 5 Allow the PENTENS LP-504 to cure. The waiting time is usually between 4 -10 hours depending on the temperature.
STEP 6 Once the injection work is complete, remove the packer and port. Use the electric grinder to remove excessive cure sealant.
Safety
Impervious gloves and barrier cream should be used when handling these products. Eye protection should be worn. In case of contact with eyes, rinse with plenty of water and seek medical advice if symptoms persist. If contact with skin occurs, it must be removed before curing takes place. Wash off with an industrial skin cleanser followed by plenty of soap and water. Do not use solvent. Ensure adequate ventilation when using these products.
Important Notes
PENTENS LP-504 is a highly reactive mixture with a short pot life characteristic. The reaction develops heat and a considerable increase in the mixture temperature. This result in reduce of the mixture’s pot life. PENTENS LP-504 can be rapidly injected into the crack but never prepared in large quantities.
The width of the crack should not exceed 5 mm.
The consumption of material depends entirely on prevailing conditions. It is recommended to make a careful estimation of consumption prior to the execution of the work and reserve sufficient materials. When injecting load-bearing cracks in reinforced concrete structures, care must be taken to eliminate the load causing the crack as new cracks in different areas may appear.
Injection with synthetic resin compounds required the cooperation of experienced specialists and trained workers. Consult with PENTENS Technical Department Repersentative for assistance.
Instruction for Use
Step 1 Surfaces must be clean and sound. Remove all dirt, grease, wax, curing compounds and other foreign matter. Roughen surface with wire brush or wire wheel.
Step 2 Prepare a small surface sealing material to use as an adhesive for setting ports. Apply a thin bead of PENTENS EPTM A/B around the perimeter of the port base.
Centralise barrel of port over crack and press into place. Be careful not to plug the opening at the bottom of the port.
Step 3 Mix additional surface seal material - PENTENS EPTM A/B. Use a putty knife or margin trowel to seal off the cracks and around the base of each port. Force apply using putty knife or margin trowel while sealing in order to ensure proper bonding to the roughened concrete surface. Apply a layer of approximately 3mm thick by 30mm wide material over the center of the crack.
Pentens lp 504 datasheet
Course: Civil engineering (bff)
University: Universiti Tun Hussein Onn Malaysia
