ROYAL DOUBLE BUBBLE 04004
Harmonization Code : 3214.10.00 | Putty and other mastics | Resin cements, caulking compounds and other mastics

Main features
- Water-Clear Bondline Appearance
- Self-Leveling Solventless Flow
- Extended 60-Minute Working Window
Product Description
Hardman Double/Bubble 04004 Water-Clear Epoxy is a 3.5 g premeasured, two-part epoxy packet that cures to a transparent, water-clear bondline. The solventless liquid is self-leveling and blush-free, with a mixed viscosity of 14,000 cP at 25 deg C and a 60 minute work time. Handling strength develops in 8 hours, while the stated cured-property schedule uses 7 days at 25 deg C. Typical final properties include 85 Shore D hardness, 18 ft-lb impact strength, and up to 2,400 psi lap shear on acid-etched aluminum after one week. The clear system fits repairs and assemblies where bondline appearance matters.
Key features
- Water-clear cured appearance: The transparent adhesive is used where the finished bondline remains visible.
- Self-leveling solventless flow: The 14,000 cP mixed liquid levels across prepared surfaces without a solvent carrier.
- Extended assembly window: A 60 minute work time and 8 hour handling point allow deliberate placement.
Applications
Applications include clear bonding and repair of glass, ceramics, metal, wood, selected plastics, printed circuit boards, optical components, jewelry, and art objects.
TDS, SDS & Technical Documents
Technical Specifications
Thermal Properties
Additional Information
As supplied / before processing
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Package size | 3.5 | g | Premeasured dual-pouch packet |
| Color | Clear | - | Part A, Part B, and mixed adhesive |
| Mix ratio | 1:1 | - | Two-part system |
| Mixed viscosity | 14,000 | cP | At 25 deg C |
| Work time | 60 | min | At room temperature |
| Tack-free time | 180 | min | At room temperature |
| Handling strength | 8 | h | At room temperature |
| Shelf life | 24 | months | Part A and Part B |
After processing / final state
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Hardness | 85 | Shore D | 7 day cure at 25 deg C; tested at 25 deg C |
| Impact strength | 18 | ft-lb | Tested at 25 deg C |
| Maximum service temperature | 82 | deg C | Cured adhesive |
| Lap shear strength | 500 | psi | Acid-etched aluminum-to-aluminum; 5 h cure at 25 deg C |
| Lap shear strength | 1,200 | psi | Acid-etched aluminum-to-aluminum; 24 h cure at 25 deg C |
| Lap shear strength | 1,800 | psi | Acid-etched aluminum-to-aluminum; 72 h cure at 25 deg C |
| Lap shear strength | 2,400 | psi | Acid-etched aluminum-to-aluminum; 1 week cure at 25 deg C |





















