SikaPower® -4720 is a two-component, high-strength epoxy adhesive with excellent adhesion properties. It is suitable for panel bonding with exposure to high dynamic stress areas.
Register for the Up and Coming SikaPower®-4720 Webinar
SikaPower®-4720 Car Panel Bonding System
19/08/2022, 10:00 AM
Time zone: (UTC+02:00) Harare, Pretoria
Microsoft Teams meeting
To find out more, make sure you join our webinar.
Speaker: Jose Alvarez - Technical Manager, TM Industry, South Africa
SikaPower®-4720 Benefits and Product Details
Robust secure adhesion with minimal substrate preparation and therefore faster application.
Easy, quick and clean product application. No running or dripping.
High flexibility during working process and fast handover to car owner.
Over clamp protection and therefore secure joining and fixation.
Recovers vehicle's original condition in regards to quality, safety and driving comfort.
| Packaging: | 195 ml cartridge | |
| Chemical base: | 2-component | |
| Colour: | Black |
Application Areas of SikaPower®-4720
SikaPower®-4720 is a structural adhesive that can be spot-welded through when wet.
It is specifically designed for meal and composite panel bonding such as:
- Door skins
- Rear body panels
- Roof skins
- Quarter panels
SikaPower®-4720 is not intended to use for body structure parts like pillars, sills, crossbeams or engine mounts.
SikaPower®-4720 Panel Replacement Guide
Step 1:
- Cut and remove damaged panel in accordance with OEM recommendations
Step 2:
- Grind bonding areas on both car body and new panel to bare metal
Step 3:
- Straighten all metal and align parts.
- Dry fit panel
Step 4:
- Clean target bonding areas with a suitable residue-fee solvent
Step 5:
- Apply adhesive bead to all bare metal areas of both pieces to be bonded
Step 6:
- Spread the adhesive to cover all bare metal areas with a plastic spatula
Step 7:
- Spread the adhesive to cover all bare metal areas with a plastic spatula
Step 8:
- Apply a second bead of adhesive on new panel approx. 5 mm from the edge of the panel
- Do not apply a second bead at points that will be spot welded
Step 9:
- Align new part to car body within 60 minutes1) after start of adhesive application
Step 13:
- Vehicle may be returned to service after 24 hours1)
Step 10:
- Clamp panel in its proper position, start in corners, panel end points and positions where tension is present in the fit (remove clams after 4.5 hours1))
Step 11:
- Tool any adhesive squeeze-out to seam along the bonded edge
Step 12:
- Proceed with welding or riveting where required and in accordance with OEM recommendations
1) All time indications are related to 23 °C (ambient and substrate). Product curing behaviors is temperature dependent and increase with higher temperatures and vice versa. Cure time may be accelerated by applying heat up to 85 °C using infrared lamps, heating blankets or ovens. Consult curing information on product label or contact Sika Technical Service.
Guideline on Product Curing Behavior (Temperature Dependent)
| Temperature | Open Time | Clamp Time | Grindable | Drive-Away Time |
| 10 °C | 90 min | 16 h | 48 h | 48 h |
| 23 °C | 60 min | 4.5 h | 16 h | 24 h |
| 30 °C | 30 min | 2 h | 6 h | 8 h |
| 60 °C | n.a. | 30 min | 1 h | 1 h |
