Why Latex Gloves Inhibit Platinum RTV Pours | RUUIPON
Latex gloves poison platinum RTV. Nitrile on the bench, residue on the master, how a 20 g slug confirms it. Typical shop. MOQ 20, $50 CAD when it applies.
Kyler Yang · Founder7 min read
Latex gloves inhibit platinum RTV. The glove rubber and often the powder leave a film on the master, the flask, and the mixing stick that keeps the cavity face tacky while the jacket back snaps. Nitrile is the default on a platinum bench. Vinyl is a maybe until you slug it. We will not "just wash the master" after a latex handling session and pour a food logo the same hour. This is a handling poison, not an SLA oligomer story and not a sulfur-clay story — those get their own pages. If your packing house used latex to wrap the print, tell us before we mix 1:1 or 10:1.
On this site the path is photos, sketch, or CAD, then a 3D-printed pattern, often a temporary silicone flip, a resin production mother, then batch RTV. The mother is not the pattern. Free DFM. HTV/HCR compression mold tooling is also quoted on RUUIPON.
Does not apply when the mix is tin-cure craft (latex is still a dirty habit, but condensation-cure is a different poison list), when the whole cup stayed soft from ratio, or when you meant medical latex as a *dump* (we are not making a device). We will not write a lab number to "clear" a latex-handled food well.
Where latex actually sits
On the master. Fingerprints in undercuts, powder in serifs. Vacuum then lifts powder into the face.
On the flask and keys. A tacky land against the box wall.
On the stick and scale pan. You inoculate every subsequent cup.
On a "clean" rag that wiped the print after latex hands.
Powder-free latex is still latex. The polymer is the inhibitor family; powder makes it worse and more visible.
The photo that would prove a latex spec: nitrile box in frame, latex box in the trash, slug puck, raking light on fingerprints. A gloved lifestyle shot that happens to be beige latex is the failure.
- Handled with latex? - yes / unknown -> Nitrile only from here
- Nitrile only from here -> Clean, reseal if needed
- Clean, reseal if needed -> 20 g platinum slug + PP control
- 20 g platinum slug + PP control -> Master land tacky, control snap?
- Master land tacky, control snap? - yes -> Still inhibited — remodel $50 or reclean and slug again
- Master land tacky, control snap? - no -> CAD lock, production cup
- Handled with latex? - nitrile documented -> 20 g platinum slug + PP control
Confirm vs SLA vs sulfur vs winter
Latex pattern: tack maps to fingerprints and powder; control puck on PP is fine; kit was in band.
SLA oligomer: tack maps to shadowed wells and print texture.
Sulfur clay: tack maps to the sculpted face, not to finger pads.
Winter: whole slug including control is sluggish; thermometers tell you.
Do not stack guesses. Slug, then pick the page.
ISO 3302-1 M2 is a rubber class, not a glove spec. CAD lock includes "who touched this, in what glove."
Inbound masters from 3PLs are the usual surprise. A sculptor in nitrile ships a sealed SLA; a fulfillment center re-bags it with latex and a powdered sheet. Our receiving note asks for glove polymer. If nobody answers, we treat it as unknown and slug before the production cup. That slug is not billed as a personality test — it is how we keep a food well off a tacky face.
Skin-safe claims on a *dump* (a mask, a prop appliance) are not this page. Latex-free as a *costume* spec is a buyer document. Latex-free as a *bench glove* spec is ours. Do not mash them. We will not invent an ISO 10993 file because someone wore nitrile.
A tooling charge still does not mean unrestricted ownership of the master we recleaned. Write who stores it so the next inbound does not go back through latex.
Food path: a latex-handled well that failed is recast from a master handled in nitrile. Wash is not a cert. Keep latex boxes off the food tote entirely so a night shift cannot 'just grab a pair.' The same split we ask for food vs soap rags applies to glove dispensers.
Failure: packing peanuts and beige gloves
Symptom: buyer-sealed SLA, our slug tacky in fingerprints, control fine.
Cause: packing crew wore latex; powder in the letter counters.
Fix: clean, nitrile from here, slug again. If type will not quiet, $50 remodel. Do not pour "a little extra catalyst." Platinum is not a tin you can starve or flood that way on a food well.
Typical shop values
Reference values only. Confirm material-specific limits against the supplier’s technical data and agree project acceptance criteria before production.
| Item | Typical shop value |
|---|---|
| Mix / shrink | 1:1 or 10:1 by weight; platinum about 0.1–0.3% |
| Bench glove | nitrile on platinum |
| Slug | about 20 g + PP control |
| Prototype | 3–7 business days after CAD lock |
| Production MOQ | 20 pieces per design |
| Simple 3D | USD $50 when that CAD scope applies |
| Drawing class | ISO 3302-1 M2 as a common default |
Stay on this page / skip this page
Stay when latex handling (glove rubber or powder) may have filmed a pattern, flask, or stick and you need nitrile as the platinum default.
Skip if the mix is tin-cure craft with a different poison list. Skip medical latex as a dump - we are not making a device. Skip SLA oligomer and sulfur-clay stories - those have their own pages. Skip finished parts - a different RFQ - ask us.
We will not quote latex on a platinum bench, powder-free or not. We will not wash a food pattern and skip the second slug. We will not quote tin to survive latex on a chocolate well. We will not quote vinyl as a default without a coupon. We will not quote extra bake as a fingerprint repair. We will not write a lab number to "clear" a latex-handled food well.
Worked example: beige gloves on a chocolate bar print
SLA bar, 180 mm, packed by a 3PL in latex. First 20 g tacky in pad marks. Nitrile clean, second slug passed on a hidden land that matched the face, platinum 1:1 tray. Prototype 3–7 business days after CAD lock. No $50 CAD. Production MOQ 20 of that design. 3PL got a nitrile note on the next inbound.
Mix-up: any "rubber glove" is fine
Nitrile ≠ latex ≠ vinyl. A black nitrile cuff still needs to be nitrile, not a rebranded latex 'exam glove' from a mixed box. Read the dispenser. If the box says natural rubber latex, it does not belong on the platinum bench even if the buyer calls it a 'shop glove.' Related: SLA inhibition, contact.
What to ask when you're buying
- Who handled the master after print — which glove polymer?
- Powdered or powder-free (still tell us if latex)?
- May we slug before the production cup?
- Food well — recast if the slug fails?
- After lock, 3–7 business days, then MOQ 20 / design?
RFQ copy-pack — latex vs nitrile
Paste into [email protected]:
Object: platinum RTV mold, nitrile handling, not LSR Master: how it was packed and handled Dump: food or craft Slug a hidden land before the production cup File: photos + millimetre scale, or ship the master CAD: quiet master OR USD $50 3D if we remodel Prototype 3–7 business days after CAD lock, then MOQ 20 per design Who keeps the master
Send the glove story with the print, not "it's clean." We slug fingerprints — not a blank quote request. Phone +86 135 3006 2969. Xinhe Blvd, Shajing, Bao'an. Shop since 2018.
FAQ
Do latex gloves inhibit platinum silicone? Yes. Use nitrile on the platinum bench. Powder-free latex is still latex.
Can I wash the master after latex and pour? Clean, then a 20 g slug that represents the face. Do not skip the coupon on a food logo.
Is vinyl OK? Coupon it. Do not assume. Nitrile is the default we stock.
Will tin-cure ignore latex? Tin is a different chemistry and not a food workaround. Do not switch chocolate to tin to survive beige gloves.
Does this change lead time? CAD lock includes a quiet, nitrile-handled master. A fail is not locked. Clock is 3–7 business days after lock; MOQ 20 per design. Mix 1:1 or 10:1.
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