Sand-Cast Metalwork
Handles, pulls, rainwater hoppers and small architectural castings poured to a bespoke pattern in a sand mould, then fettled and finished by hand. Casting marks and slight variation between pieces are inherent to the process.
Carbon and evidence
How This Is Made
An Environmental Product Declaration is issued by a manufacturer against a declared unit. This record has neither, so it states sourced facts about process and provenance instead of a carbon figure.
Sand casting in small UK foundries; the pattern-making trade behind it is the scarcer skill
Process
Feedstock
Metal
Bronze, brass or aluminium, usually with a high recycled fraction — copper alloys are among the most persistently recycled construction metals
Process heat
Furnace-melted
Melted and poured at roughly 900–1,200 °C depending on the alloy, on top of the energy already in the ingot or scrap. High-temperature by any measure, and recorded as such.
Binder
Mechanical
Fabrication
Workshop-made
Sourcing: alloy internationally traded; casting and finishing at a UK foundry
Who Builds It
Specialist trade
Limited UK availability
Pattern-making is the cost and the lead time on a first run. Repeat pours from an existing pattern are comparatively quick
End Of Life
Demountable
Screw-fixed and removable whole; copper alloys hold high scrap value and are recycled rather than landfilled
Maintenance: Left to patina, or polished on a cycle. Repairable and re-castable from the original pattern
Specification Risk
What a specifier has to resolve before this can be built.
- Certification
- No type certification for bespoke castings; fire and security ironmongery needs tested product instead
- Fire
- Non-combustible. Note that a bespoke handle cannot be used on a fire door set that requires certified ironmongery
- Warranty
- Foundry warranty on the casting; finishes are usually excluded
- Insurance
- Not normally an issue
- Supply
- Small foundries with long queues; hold the pattern to make replacements possible
Read This Honestly
- •Melting and pouring is high-temperature work on metal that already carries its smelting energy. Bespoke does not mean low-impact.
- •Fire doors and escape routes need certified ironmongery. A bespoke casting cannot be substituted onto a tested door set.
- •Colour and patina vary between pours. Order a full set at once if consistency matters.
Design & Specification Notes
Handles, pulls, rainwater hoppers and small architectural castings poured to a bespoke pattern in a sand mould, then fettled and finished by hand.
Material Note
The pattern is the specified article. Once it exists the foundry can pour again, which is what separates a bespoke casting from a one-off — and what makes the pattern worth keeping.
Typical Uses
- •Hardware & fittings
- •Bathroom/kitchen fixtures
- •Accessories
Key Performance
Adds visual texture and character.
Specification Actions
- •Ask the foundry for the alloy specification and its recycled content; copper alloys routinely carry high scrap fractions.
- •Agree the finish explicitly — unlacquered will patina, lacquered will wear through unevenly, and the difference is not reversible after installation.
- •Keep the pattern with the building record; it is what allows a matching replacement in twenty years.
Indicative Health & Indoor Air
Inert in place. Unlacquered copper alloys develop a patina that transfers to the hand at first; this is expected and not a hazard.
Products in this category
No manufacturer products are listed in this category yet. You can specify sand-cast metalwork generically and carry it through to a render and specification as normal.
Specification
- Finish
- Sand-cast bronze or brass, unlacquered
- Service life
- 100 years