Resin materials overview

Published · Researched 2026-09-20

Observation date: 2026-09-20. All prices and claims below are dated to this observation date. Prices are quoted per 1 kg bottle, which in practice is nearly per-liter pricing: typical uncured-resin density of ~1.10–1.15 g/cm³ is the commonly cited range (UNVERIFIED — no density figure was sourced from a manufacturer TDS for this guide; it is used here only to justify treating $/kg ≈ $/L), giving 1 kg ≈ 0.87–0.91 L. Exact per-liter figures are therefore labeled approximate, not exact. Crawl/observation freshness is noted per price — many Amazon street crawls are stale and are flagged as such. Official-store prices come from recent page crawls (mostly within the last 45 days).

Categories covered

Standard

The default starter resin: Elegoo Standard / Standard 2.0 / 8K, Anycubic Standard, Phrozen Aqua 8K. High detail, cheap, but brittle — thin parts snap under finger pressure. Good for display miniatures, terrible for anything you drop, drill, or snap-fit. This is the resin that teaches people why ABS-like exists.

ABS-like & Tough

The functional upgrade most resin users actually end up on: Elegoo ABS-Like 3.0 / 3.0 Pro, Anycubic ABS-Like Pro 2 / ABS-Like 3.0, Siraya Tech Fast ABS-Like. Formulated for higher elongation and impact resistance — drillable, tap-able, survivable drops. The price gap vs standard resin has nearly closed (often within $2–5/kg), so there's little reason to buy plain standard unless you only print static display pieces.

Water-washable

Elegoo Water Washable 2.0 / 8K, Anycubic Water Washable+, and water-washable ABS-like variants (Elegoo WW ABS-Like $20.99/kg). Washes in tap water instead of IPA — no alcohol fumes, no solvent cost. The tradeoff the community consistently reports: more brittle than equivalent standard resins ("a little brittle," "much more fragile than standard resins," reviews dated 2025-10 through 2026-04). Community operating notes: don't leave prints soaking overnight (they go soft and lose shape), wash then cure promptly, and still rinse well — several makers use a final IPA/detergent dip because water alone leaves a scummy film on some formulations. Newer "2.0 / Resin+" formulas claim anti-crack improvements; user feedback is mixed-positive. Cure the rinse water in sunlight before disposal (UV solidifies dissolved resin so it can be filtered out) — never pour wash water down the drain.

Engineering (flexible, high-temp, castable)

• Flexible/elastic: Siraya Tech Tenacious (65D Shore D flexible, the community's go-to additive — often mixed 10–30% into other resins to de-brittle them), Tenacious Flex Black (70A Shore A, true rubbery), Siraya Roamr TPU Air HR. One FB-group user reported Tenacious parts falling to pieces on the build plate on a Mars 4 Ultra — it demands ≥25 °C ambient, thick supports (1.2 mm tips), and long exposures; easy prints it is not.
• High-temp: Siraya Tech Sculpt (high hardness, high resolution, but more brittle than Blu — popular with digital sculptors/model makers for sanding and mold-making), Phrozen TR300 Ultra-High Temp line. Typical HDT 55–79 °C range.
• Castable: Siraya Tech Cast (clean burnout for jewelry/metal casting), Siraya Tech Castable Wax; Phrozen also lists jewelry/castable SKUs. Mentioned for completeness — jewelry/dental is a specialist lane with its own burnout schedules.

Key specs

Standard resins

¹ From an eBay/TDS-style listing (picclick.co.uk, crawl 2026-08-15) — treat as indicative, not lab-certified. ² From a US reseller spec table for Aqua 8K (risingsunfpv.com, crawl 2026-09-19/20 — fresh). ³ Anycubic official product page claims (anycubic.com, crawl 2026-09-18 — fresh); EAB numbers not published.

ABS-like / tough resins

⁴ Reseller spec table (3dprintingstore.co.za, crawl 2026-09-13 — fresh). ⁵ EU reseller spec table (anodas.lt, crawl ~2026-06). Siraya Tech's own Tenacious user guide (siraya.tech, crawl 2026-09-17 — fresh) gives Tenacious: Shore 65D, tensile 28 MPa, Izod 57 J/m notched, HDT 55 °C, EAB 70%, Young's 800 MPa.

Water-washable resins

¹ 123-3d.co.uk TDS excerpt (crawl 2026-04-05). Safety level for all categories: GHS Skin Irritation Cat. 2, Skin Sensitization Cat. 1B (H317 — "may cause an allergic skin reaction"), eye irritation Cat. 2, respiratory irritation Cat. 3, aquatic chronic Cat. 3. Uncured resin and uncured prints are the hazard; fully cured parts are generally inert.

Pricing (per 1 kg ≈ per liter), observed 2026-09-20

Elegoo (official US store us.elegoo.com unless noted)

Anycubic (official anycubic.com unless noted)

Siraya Tech

Phrozen

Substitution notes: "MSRP" for Siraya Tech is the Amazon "List Price" (Amazon states this is the manufacturer/seller-supplied suggested price) — Siraya's own shop prices were not directly observed. Phrozen official-store crawls are 3–8 months old; the freshest Phrozen numbers are US resellers. All Amazon crawls older than ~60 days are marked STALE and should not be quoted as current without re-checking.

What's needed

• Wash & cure station (strongly recommended): Elegoo Mercury Plus 3.0 — $149.98 (was $189.99) via Amazon marketplace tracker, crawl 2026-09-11. Elegoo Mercury Plus V2.0 — €90 pre-order (reg. €149) on eu.elegoo.com, crawl 2026-06-05. Anycubic Wash & Cure Plus 3.0 — $149.99 (was $219.99), crawl 2026-09-14; original Plus typically $120–160 (2026 review roundup). Manual alternative: two buckets + 405 nm UV lamp, but a station pays for itself in convenience.
• Wash solvent: 91–99% IPA for standard/ABS-like resins (gallon jugs are the economical buy); tap water for water-washable resins. Siraya's Tenacious guide prefers 95% ethanol over IPA.
• PPE: nitrile gloves (5+ mil), splash-rated safety glasses, half-face respirator with organic-vapor cartridges. A silicone mat, paper towels, and a spare FEP film round out the bench.
• Ventilation: print in a ventilated room; route exhaust outside if possible. Resin fumes are low-odor for modern formulas but still respiratory irritants.
• Curing notes: post-cure 405 nm UV 10–25 min depending on part thickness (Siraya Tenacious: ~10 min thin, up to 25 min thick); wash first and let all solvent evaporate before curing (trapped IPA causes white bloom and cracking); curing submerged in water increases efficiency for some resins. Don't over-cure engineering resins — extended UV bakes them brittle.

Safety — resin sensitization, community safety consensus

Resin is a skin sensitizer: GHS Category 1B, H317 "may cause an allergic skin reaction." The community and every safety guide agree on the same core points (3dprinting.com 2026 safety guide, crawl 2026-09-20; artist-3d.com toxicity guide; Siraya/Phrozen precaution sheets):

1. Skin contact is the #1 risk, not fumes. Uncured resin on bare skin can cause contact dermatitis; repeated exposure can develop a lasting allergy that ends your resin-printing hobby. Gloves every time you touch resin, vat, build plate, or uncured prints. If resin touches skin, wash with soap and warm water — not solvent.
2. Full PPE is the consensus kit: 5+ mil nitrile gloves, splash-rated safety glasses, half-face respirator with organic-vapor cartridges when handling liquid resin or pouring.
3. Ventilate. Low-odor ≠ safe. Ventilate the room; don't sleep in the same room as an active printer; exhaust outside is the gold standard.
4. Water-washable resin is not "safe" resin. It avoids IPA but the resin itself carries the same sensitizer hazards, and its wash water is contaminated — cure it in sunlight, filter out the solids, and dispose as solid waste, never down the drain.
5. If you've been printing without PPE: stop, wash exposed skin with soap and water, watch 48 hours for redness/itching/breathing changes, and get proper PPE before the next session. Sensitization is cumulative and irreversible — the people who get burned are usually the ones who were "fine for months" first.
6. Cured prints are inert; uncured prints, drips, and IPA-wash sludge are hazardous waste.

Brand/support reality

• Elegoo: the volume leader; aggressive official-store pricing ($19.99–$25.99/kg across the line), frequent 30–35% bundle codes (e.g. RESIN135 buy-5-save-35%, observed on us.elegoo.com summer deals). Broad printer ecosystem; resin profiles widely published.
• Anycubic: official-store Standard at $29.00 looks high vs Elegoo, but Amazon street is consistently cheaper (ABS-Like Pro 2 at $17.99, Water Washable at $18.99 as of Aug/Sep 2026). Strong wash & cure lineup (the Plus/Plus 3.0 line is the community default recommendation alongside Mercury).
• Siraya Tech: the engineering-resin specialist and the brand with the most visible community loyalty (13k-member "Siraya Tech users group" on Facebook, actively used for settings help and troubleshooting). Premium pricing (Blu list $49.99/kg, Tenacious ~€98/kg EU), but publishes the best user guides and resin profiles in the business. Amazon "List Price" figures are manufacturer-supplied; street runs 25–35% under list.
• Phrozen: strongest on published lab specs (full TDS tables per resin) and high-resolution formulations (Aqua 8K/Hyperfine). Official US store starts Aqua 8K "from $33.00" but reseller reality is $36–55/kg and stock is spotty (out of stock at two US resellers observed 2026-09-20). Engineering line (TR300 high-temp, Pro 8K at $99.99) is priced like a pro brand.

Community verdict

Across Facebook groups, Reddit-adjacent reviews, and social posts, Siraya Tech is the brand people actively advocate for rather than just buy: the Blu/Tenacious blend is the default recommendation for functional parts (one RC-hobbyist maker showcase, Dec 2025, praises Blu+Tenacious as "very tough in real-world testing"; a Sep 2026 Amazon review calls Blu "glassy, tough, isotropic like molded PA66 or PC" after hammer-smash testing, citing a Zack Freedman recommendation), and Tenacious is widely used as a 10–30% additive to de-brittle cheaper resins. For everyday printing, most buyers land on whichever ABS-like is cheapest that week — Elegoo ABS-Like 3.0 Pro and Anycubic ABS-Like Pro 2 trade blows around $18–20/kg — with water-washable reserved for people who specifically want to skip IPA, accepting the widely-reported extra brittleness as the price of convenience.

Sources consulted

Facebook groups searched (facebook-cli, account: Luc Schurgers):

• groups search --keywords "resin 3D printing" --role any → found: "3d Resin Printing with 3dprintingpro" (7k), "ELEGOO Saturn 3D Resin Printer Un-Official Support Group" (2k), "Elegoo Mars/Saturn/Jupiter international" (722), "Phrozen Sonic Mighty Series Printer Troubleshooting" (11k), "Dental Resins & Dental 3D Printing Group" (7k).
• groups posts on 3dprintingpro group (query "best resin"/"Siraya") → no matching posts returned; NEW_POSTS browse showed STL-promo and beginner-help posts, nothing resin-brand-comparative.
• groups posts on ELEGOO Saturn unofficial group → only hashtag-only posts, nothing usable.
• groups search --keywords "Siraya Tech" --role any → "Siraya Tech users group" (13k, group id 222410478670341); browsed NEW_POSTS (2026-08-26 → 2026-09-15): active peer-support on print profiles, True Blue/True Blue Cast troubleshooting on Elegoo Saturn 3 Ultra / Mars 4/5 Ultra / Jupiter 2, Tenacious failure reports (needs ≥25 °C, thick supports), Cast resin jewelry-casting successes. No single "which resin" thread, but heavy brand-loyal troubleshooting activity.
• Model-response guidance note: raw FB post text was summarized, not reproduced verbatim, per tool output guidance.

Social (social.search): queries "Siraya Tech Blu resin prints", "resin 3D printing miniature results", "ABS-like resin functional prints" → 5 relevant posts: RC-car parts in Blu+Tenacious blend (FB group 229961139446742, 2025-12-03); sirayatech group Blu-variant comparison thread (Lava Black vs Obsidian vs Nylon — Lava best properties but viscous, needs heated tank ~30 °C); two Siraya True Blue failure/support threads (2026-06); HeyGears idea-shapers post (not resin-brand relevant).

Web (browser.search): us.elegoo.com / elegoo.com product & deals pages; anycubic.com product pages; siraya.tech user guides; us.phrozen3d.com product pages; Amazon listing crawls (Elegoo, Anycubic, Siraya Tech, Phrozen); pricehistory.app (Anycubic Water Washable, ABS-Like Pro 2); 3dprinting.com 2026 safety guide; artist-3d.com toxicity guide; risingsunfpv.com / ultimate3dprintingstore.com / shop3duniverse.com / anodas.lt / 3dprintingstore.co.za reseller spec+price pages; desertcart/Amazon review snippets for water-washable brittleness; testmarket.io Amazon price trackers (Mercury Plus 3.0, Wash & Cure Plus 3.0); 3dtechvalley.com & electromaker.io wash & cure reviews; Reddit-targeted queries returned no usable threads (site:reddit.com query came back empty — a gap, not a finding).

Instagram: instagram-cli is account-scoped only per instructions; general discovery done via social.search (above) and image-search.

Images

• resin-overview-01.jpg — PRIMARY SHOT. Elegoo ABS-Like Resin V3.0 Pro 1kg bottle (grey), official elegoo.com product image. Source: https://www.elegoo.com/cdn/shop/files/ABS-like-Resin-V3.0-Pro-Grey-1KG.jpg — verified 200, image/jpeg, 2026-09-20.
• resin-overview-02.jpg — Example resin print: Siraya Tech "Build" resin bottle beside a detailed gothic-cathedral print (siraya.tech blog imagery). Source: https://siraya.tech/cdn/shop/articles/DSC09573.jpg — verified 200, image/jpeg, 2026-09-20. Visually confirmed: bottle + finished print.
• resin-overview-03.jpg — Siraya Tech Blu (Emerald Blue) 1kg bottle product shot (EU reseller). Source: https://c.cdnmp.net/712781591/p/m/3/rasina-siraya-tech-blue-emerald-blue-1kg~9233.jpg — verified 200, image/jpeg, 2026-09-20.
• All saved to the bundled image library/. No swaps were needed — all three primary candidates loaded on first attempt.

Deepening pass (2026-09-20)

Social layer: Facebook groups zero-yield for "ABS-like resin" across the big groups; resin discussion lives on Reddit (r/resinprinting), manufacturer Discords, and YouTube instead. Threads keyword search: zero results (effectively unusable). Instagram: no public topic search via the CLI — no IG signal, noted honestly. This file is the context companion to the tough-resins item; the resin evidence below is shared across both.

Independent comparative test (TweakReviews, Elegoo resin test): the most useful independent resin data found. ABS-like resin was more durable than standard in that tester's drops — but the improvement was not transformative; none of the tested figures survived repeated table-height drops. Elegoo Water Washable was relatively flexible in that specific test, so "water-washable is always more brittle" needs qualifying as formulation-dependent rather than a law. Elegoo Rapid Standard was the test's clear reject: stronger smell, harder to work with, fragile results.

Experienced-owner guidance (vegoilguy resin-choice guide; Britmodeller thread): Siraya Blu described as strong/tough but strong-smelling; Siraya Tenacious as an effective flexible additive for blending toughness into brittle resins. Practitioner consensus keeps emphasizing: "ABS-like" is a category label describing improved toughness over standard, not equivalence to injection-molded ABS — the name overpromises and the community knows it.

Cross-item note: the resin social pulse is Reddit/YouTube/Discord-shaped, not Facebook-shaped — worth stating because the social-first method's FB layer genuinely undercovers resin. No new 2026 pricing moved; first-pass figures (Anycubic ABS-Like V2 $18.99–21.99/kg, Siraya Blu $39.99/kg, Tenacious $34.99/500 g) stand as dated 2026-09-20.

Deepening pass 3 (2026-09-21)

Fresh 2026 market snapshot (3dprinting.com "Best Flexible Resin 2026", published ~31 days earlier, crawled 1 hour earlier): new entry Siraya Rebound 55A ($55/L) joins the established lineup; no structural changes to the resin taxonomy above.

Persistent gaps: no fresh 2026 Siraya technical sheets beyond those already listed; third-party review traffic still concentrates on Siraya products; no Facebook-group owner data (keyword endpoint unusable).

Sources

• elegoo.com — retrieval date not recorded
• siraya.tech — retrieval date not recorded
• c.cdnmp.net — retrieval date not recorded