Loctite 3471 Fixmaster Steel Putty 454g
Available
Loctite EA 3471, previously sold as Loctite Fixmaster Steel Putty, is a two-part, steel-reinforced epoxy repair putty that cures to a metal-like finish. The resin is grey and the hardener white; mixed, it is a grey putty.
It suits repairing non-structural casting defects, making jigs and fixtures, sealing vessels, tanks and valves, resurfacing worn air seals and filling cavitated areas. Once cured it can be machined, drilled, tapped or filed.
Where this product is used
- Repairing non-structural defects in castings
- Making jigs and fixtures
- Sealing vessels, tanks and valves
- Resurfacing worn air seals
- Filling cavitated areas
Features
- Two-part, steel-reinforced epoxy that cures to a metal-like finish
- Mixed 2.5:1 by volume or 6.25:1 by weight
- Cures at room temperature after mixing
- Working life 30 minutes, gel time 35 to 40 minutes at 21 °C
- Will not sag
- Can be machined, drilled, tapped or filed once cured
- Typical operating range -30 °C to 105 °C
Key specifications
| Specification | Detail |
|---|---|
| Brand | Loctite |
| Chemical type | Epoxy, two-part, steel reinforced |
| Appearance | Resin grey; hardener white; mixed grey putty |
| Mix ratio (resin:hardener) | 2.5:1 by volume; 6.25:1 by weight |
| Gel time (21 °C) | 35 to 40 minutes |
| Working life | 30 minutes |
| Application conditions | 15 °C to 30 °C; relative humidity below 85 %; substrate at least 3 °C above dew point |
| Compressive strength (ISO 604, cured at 25 °C) | 61.7 N/mm² |
| Lap shear strength (grit-blasted mild steel) | 9.6 N/mm² |
| Tensile strength (ISO 527-2) | 27.8 N/mm² |
| Hardness (ISO 868) | Shore D 82 |
| Glass transition temperature (ASTM E 1640) | 60 °C |
| Volume shrinkage | 1.63 % |
| Operating range | Typically -30 °C to 105 °C |
Choosing the right option
For a quick repair stick with a 4 minute working life, see Loctite 3463 Metal Magic Steel (EA 3463 Metal-filled Epoxy Stick). For a ceramic-reinforced brushable coating, see Loctite Nordbak Brushable Ceramic White 1Kg.
See also: Loctite 3463 Metal Magic Steel (EA 3463 Metal-filled Epoxy Stick), Loctite Nordbak Brushable Ceramic White 1Kg, Loctite PC 9593 Nordbak Fast Curing Wearing Compound Kit - 3Kg, Loctite Instant Mix 5 Minute Epoxy 14ml.
Using it
Mix resin and hardener at 2.5:1 by volume or 6.25:1 by weight. Working life is 30 minutes and gel time is 35 to 40 minutes at 21 °C.
Apply at 15 °C to 30 °C, with the ambient temperature above 15 °C and rising, relative humidity below 85 % and the substrate at least 3 °C above the dew point.
Pre-heating the repair surface until it is warm to the touch speeds cure at low temperatures. Once cured the putty can be machined, drilled, tapped or filed.
Follow it before you apply.
It is typically used in applications with an operating range of -30 °C to 105 °C.
Apply it between 15 °C and 30 °C.
Storage and handling
Store unopened in a dry place. The optimal storage temperature is 8 °C to 21 °C. Storage below 8 °C or above 28 °C can adversely affect the properties of the product.
Limits and safety
Suits non-structural casting defects, with a typical operating range of -30 °C to 105 °C. Not recommended for pure oxygen or oxygen-rich systems, or as a sealant for chlorine or strong oxidisers. Read the safety data sheet before use.
The properties are unchanged.
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