foundry sand: meaning, definition, pronunciation and examples

C1/C2
UK/ˈfaʊndri sænd/US/ˈfaʊndri sænd/

Technical, Industrial, Academic

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Quick answer

What does “foundry sand” mean?

Sand used in foundry processes, specifically for making moulds into which molten metal is poured.

Audio

Pronunciation

Definition

Meaning and Definition

Sand used in foundry processes, specifically for making moulds into which molten metal is poured.

A type of refractory sand engineered to withstand high temperatures while maintaining the shape of a casting mould. It often consists of silica sand bonded with clay, resin, or other binders.

Dialectal Variation

British vs American Usage

Differences

No significant lexical or spelling differences. The compound noun is identical and standard in both variants.

Connotations

Neutral industrial/technical term in both variants.

Frequency

Equally low-frequency outside metalworking contexts in both regions. Slightly higher frequency in regions with historic manufacturing industries.

Grammar

How to Use “foundry sand” in a Sentence

[verb] + foundry sand (e.g., condition, reclaim, mix)foundry sand + [verb] (e.g., foundry sand cools, foundry sand retains heat)[adjective] + foundry sand (e.g., bonded, green, spent, fresh)

Vocabulary

Collocations

strong
green sandsilica sandmoulding sandbonded sandreclaimed sandcasting sand
medium
prepare foundry sandrecycle foundry sandbind foundry sandcondition foundry sand
weak
fine foundry sandhot foundry sandwet foundry sandbatch of foundry sand

Examples

Examples of “foundry sand” in a Sentence

verb

British English

  • (N/A - not a verb)

American English

  • (N/A - not a verb)

adverb

British English

  • (N/A - not an adverb)

American English

  • (N/A - not an adverb)

adjective

British English

  • The foundry-sand reclamation unit was installed last week.

American English

  • We need a foundry-sand analysis before starting the pour.

Usage

Meaning in Context

Business

Used in procurement, supply chain, or operational discussions within manufacturing sectors like automotive or heavy engineering.

Academic

Used in materials science, engineering, and industrial archaeology papers describing casting processes or material properties.

Everyday

Virtually never used. Might be heard in towns with a foundry history.

Technical

Core term in metallurgy and foundry engineering. Discussions cover its composition, reclamation, and thermal properties.

Vocabulary

Synonyms of “foundry sand”

Strong

green sand (a specific type)

Neutral

moulding sandcasting sand

Weak

industrial sandrefractory sandmetalcasting sand

Vocabulary

Antonyms of “foundry sand”

molten metalcastingpatterncore (as in foundry core)

Watch out

Common Mistakes When Using “foundry sand”

  • Using 'foundry' as an adjective alone (e.g., 'foundry equipment' is fine, but 'foundry' for 'foundry sand' is incomplete).
  • Confusing 'foundry sand' with regular construction sand.
  • Misspelling as 'foundary sand'.

FAQ

Frequently Asked Questions

No. It is a specially formulated, often bonded, refractory material designed to withstand extreme heat and retain the shape of a mould.

Yes, through a reclamation process where it is cleaned, cooled, and rebonded, though it eventually becomes spent and must be replaced.

It refers to a specific type of foundry sand that is moist and clay-bonded, ready for moulding. 'Green' denotes its unfired, moist state, not its colour.

It is a standard, essential term within metalworking and engineering industries but is very rare in everyday general English.

Sand used in foundry processes, specifically for making moulds into which molten metal is poured.

Foundry sand is usually technical, industrial, academic in register.

Foundry sand: in British English it is pronounced /ˈfaʊndri sænd/, and in American English it is pronounced /ˈfaʊndri sænd/. Tap the audio buttons above to hear it.

Phrases

Idioms & Phrases

  • (none)

Learning

Memory Aids

Mnemonic

Think of a FOUNDRY (place for casting metal) and SAND (the mould material). Foundry + Sand = the sand used in a foundry mould.

Conceptual Metaphor

N/A (Highly technical term not typically metaphorized.)

Practice

Quiz

Fill in the gap
Before the casting process, the workers prepared the by mixing silica sand with a clay binder.
Multiple Choice

What is the primary purpose of foundry sand?