Sahawatthanakit (1988) Co., Ltd.
SAHAWATTHANAKIT(1988) · Make It Smart
Concrete sacrificial anodes in four sizes, smallest to largest — round mortar pucks around a zinc core with two free stainless tie-wire tails for the rebar — studio render of the shape
Concrete Sacrificial Anode CR20 (compact)SIDE VIEWtie wires, both sidesSECTION A–Azinc corealkaline mortar pH ≥ 14Sahawatthanakit (1988) Co., Ltd.PART NO.Mortar puckSIZEto drawingMATERIALสังกะสีในมอร์ตาร์ด่างSTDมอก. 3029-2563REFERENCEConcrete Sacrificial Anode CR20
Reference drawing — the shape we supply, drawn to the maker's own proportions. Sizes are made to your drawing.
Rust Treatment & Coatings

Concrete Sacrificial Anode CR20 (compact)

คอนกรีตอาโนดกันกร่อน CR20 (ขนาดเล็ก)

SKU: SAHA-CA-20

From ฿670 · excl. 7% VAT (฿717 incl. VAT) · volume pricing available — tell us the quantity

Models and prices, whole family (excl. 7% VAT · incl. VAT in brackets)

CR20 (compact)฿670 / pc(฿717)
CR60 (standard)฿2,000 / pc(฿2,140)
CR100 (large)฿2,500 / pc(฿2,675)
CR160 (extra-large)฿3,000 / pc(฿3,210)

What jobs it suits

  • Zinc / aluminium anodes and cathodic protection for tanks and submerged structures
  • Anti-rust and anti-corrosion coatings for steel and structures
  • Surface preparation and coating to ISO 8501 / ISO 12944
  • Corrosion protection for pipes and tanks in water and marine environments
See all Rust Treatment & Coatings · choose the right one for the job

Properties (manufacturer data)

Zinc sacrificial anode embedded in reinforced concrete: stops rust at its source instead of patching the surface again and again, extending the life of the concrete structure. Made in Thailand to TIS 3029-2563, used on government and project work, in stock in Thailand with no import lead time — most foreign brands are quote-only through agents.

Specifications

core
zinc in alkaline mortar
type
sacrificial concrete anode
capacity
compact model for tight spacing / thin sections
standard
TIS 3029-2563
standards
TIS 3029-2563 · ASTM B418 Type II · ISO 12696
Model
CR20
service life min
10 years

Shape, mounting and size

Made to drawing — send your drawing, or a photo of the part you removed, and our engineer sizes it. Minimum production quantities apply to special sizes.

Mounting: A solid alkaline-mortar puck around the zinc core, with a stainless wire leg leaving each side and bent upward as two separate free tails that are twisted onto the rebar before the pour

Concrete anode tied to rebar — each stainless wire wrapped round the bar and twisted closed (studio render of the fixing)
Concrete anode tied to rebar — each stainless wire wrapped round the bar and twisted closed (studio render of the fixing)

คอนกรีตอาโนด — แกนสังกะสีหุ้มมอร์ตาร์ด่าง

แกนสังกะสีหุ้มด้วยมอร์ตาร์ผสมพิเศษที่มีลิเทียมไฮดรอกไซด์ ความเป็นด่าง pH ≥ 14 ซึ่งกันไม่ให้สังกะสีเกิด passivation จึงจ่ายกระแสได้ต่อเนื่อง

เหล็กเสริมในคอนกรีตทั้งงานใหม่และงานเก่า
สะพาน · เขื่อน · ท่าเทียบเรือ · โครงสร้างคอนกรีตในน้ำทะเลหรือใกล้ทะเล
✕ไม่ใช่สินค้าสำหรับงานที่ไม่มีคอนกรีตหรือน้ำเป็นตัวกลาง — อาโนดทุกชนิดไม่ทำงานในอากาศ
รูปทรง:
คล้ายลูกปูน ผูกลวดหรือรัดเข็มขัดโลหะเข้ากับเหล็กเสริมได้ง่าย
มอร์ตาร์ที่หุ้ม:
Alkali-Activating Mortar ผสมลิเทียมไฮดรอกไซด์ · pH ≥ 14
ผลทดสอบจากหน่วยงานกลาง:
Polarization Decay ไม่น้อยกว่า 100 mV
รัศมีป้องกัน:
ไม่น้อยกว่า 60 ซม.
อายุป้องกัน:
ไม่น้อยกว่า 10 ปี
ความปลอดภัยต่อเหล็กเสริม:
ไม่มีกรด ไม่มีคลอไรด์หรือโบรไมด์ที่จะทำลายเหล็กเสริม
มอก. 3029-2563ASTM B418 Type IIISO 12696

Figures as published by the manufacturer. Sizes are quoted against your drawing.

Other shapes, and what we do not supply

Why Sahawatthanakit (1988)?

  • Delivered across Thailand · same-day express in Nonthaburi and Greater Bangkok
  • Price follows quantity — the more you order, the better the price
  • Free engineering advice on the right specification
  • Quotation · weekdays 08:00–17:00

Buy online now — pay by PromptPay or card

Total incl. VAT 7% and delivery฿717

Full Thai tax invoice issued after payment (enter your company tax ID on the payment page). Larger quantities or heavy freight: request a quotation instead.

Questions customers ask before ordering

Do you have a zinc anode close to ASTM B418, ≥60 g, urgently?

Yes — model CR60 (TIS 3029-2563 / ASTM B418 Type II): zinc ≥60 g, Ø60 mm × 30 mm, with stainless wire. Send the spec sheet or TOR in chat; we match the model and send the TIS certificate file. The most recent order came in as a spec on Monday night for 16 pieces and reached the site in Nonthaburi on Tuesday afternoon. Stocked items ship the next business day; for same-day pickup tell us before 10:00.

How many anodes for a single house or building repair with rusting rebar?

One concrete anode protects rebar within roughly a 60 cm radius, so they are placed about 1 m apart along the repaired steel; the count follows the repair length — a recent housing-estate home repair used 16 pieces. Send photos of the cracks and the repair area in chat and our engineer sizes the number and positions free. The same product serves home, building and large structural repairs.

What do you need in order to quote anodes or a CP system?

Send in chat: the structure to protect (pipe, pile, hull, rebar in concrete), its size or surface area, the environment (seawater, fresh water, concrete), the design life you need, and a drawing or a photo of the old part you removed. Our engineer sizes the anodes to DNV-RP-B401 / ISO 12696 and quotes the parts only — we supply and deliver, we do not take installation work.

Do you have zinc/aluminium/magnesium anodes in this size?

Zinc (99.995%), aluminium (Al-Zn-In) and magnesium anodes are made to the project drawing; price depends on size and quantity. Send the part number or dimensions (e.g. 45×100×450 mm) or the previous drawing. Anodes are consumed by design and are replaced each dry-docking or maintenance cycle.

How does the NOVA concrete anode differ from the standard line, and what does it cost?

NOVA GalvaTect is the budget line on the same principle (zinc in alkaline mortar protecting rebar in concrete): T20/T60/T100/T160 are ฿300/730/840/1,000 each ex-VAT, suited to general repairs and budget-controlled projects. The standard line (TIS 3029-2563) is quoted by volume.

Do you install anodes and repaint as well?

No. We supply and deliver the parts only — we do not take installation, diver anode replacement or repainting work. Buy the parts from us and have your own contractor fit them; we will send the mounting details and specs for them. Protective coatings are sold separately (rust-tolerant PU primer, underwater-applicable epoxy).

Is it in stock, and how soon can you deliver?

Items stocked in Thailand ship immediately: Bangkok, Nonthaburi, Pathum Thani and Samut Prakan in 1–2 business days (same-day express within the metro area); other provinces 2–5 business days via Kerry/J&T; 200 L drums and heavy goods go by dedicated freight. Tell us the quantity and destination and we confirm the delivery date with the quotation.

Is there a minimum order?

Most items have no minimum — order by standard pack size (200 L drums may need several to justify freight). Pricing is tiered by quantity, so the unit price falls as volume rises.

Can I get a PDF quotation in my company's name and a full tax invoice?

Yes to both. Quotations go out as PDF on business days (Mon–Fri 08:00–17:00), and every order receives a full Thai tax invoice (tax ID 0125563021156) with withholding tax handled per job type. New customers pay before shipment or place a ≥30% deposit on project work; customers with 6+ months of history can apply for credit terms.

Do you provide COA / SDS / test reports?

Yes, per product line: refrigerants come with an SDS and a quality certificate; paints and coatings with a TDS/SDS; anodes with ASTM B418 / ISO 12696 certification and a Mill Test Certificate stating composition and electrochemical capacity. Send the model and lot number in chat to request documents.

Can I buy for resale — is there trade pricing?

Yes. We supply shops and contractors who resell or use the goods on customer jobs. Trade pricing is tiered by volume and order frequency — send the item list, monthly quantity and destination province and we will quote a trade price.

Price: depends on quantity and delivery location — tell us the quantity you need for an accurate price

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