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Multex Drainastic – Commercial Caustic Drain Unblocker | 1L, 5L & 25L

Multex Drainastic – Commercial Caustic Drain Unblocker | 1L, 5L & 25L

1 total reviews

Concentrated professional caustic drain unblocker for grease and slime in compatible waste-water drains.
1L, 5L & 25L · Pump-inclusive 5L / 25L variants · DANGER: corrosive; read SDS.

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Regular price £7.99 GBP
Regular price Sale price £7.99 GBP
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Quantity
Compare pack prices & price per litre

Prices reflect current pack options. Delivery charges are calculated at checkout. Pump bundles include one pump; their per-litre cost includes the pump.

PackPricePer litre
1L angle-neck squeeze bottle £7.99 £7.99
5L £19.99 £4.00
5L + 1 dosing pump (38mm) £23.98 £4.80
25L trade drum £85.99 £3.44
25L trade drum + 1 dosing pump (DIN61) £91.98 £3.68

Choose a pack name to select that option. Compare prices per litre of liquid, not per bottle.

Trade pack options · Secure checkout · Safety data available

Read the product label and SDS before use. Shipping charges are calculated at checkout.

Multex Drainastic is a professional caustic drain unblocker for grease and slime in compatible waste-water drains. Its concentrated sodium-hydroxide formulation is intended for trained cleaning and facilities-maintenance operators.

  • Primary application: helps break down grease and organic deposits in suitable waste-water drains, subject to the manufacturer's instructions and workplace COSHH assessment.
  • Formula: contains 30–50% sodium hydroxide according to the product-specific safety information.
  • Pack sizes: 1L angle-neck bottle, 5L container and 25L trade drum.
  • Optional pump: choose a 5L + one 38mm pump or 25L + one DIN61 pump variant. The price updates to the complete pump-inclusive amount; confirm chemical and fitting compatibility before use.
  • Bulk ordering: increase the quantity for eligible automatic Buy More, Save More discounts displayed at checkout. No separate multipack variants are required.

DANGER — corrosive chemical for professional use. Harmful if swallowed and causes severe skin burns and eye damage. Wear the protection specified in the SDS, avoid splashes and never mix with acids, bleach or other cleaners. Do not use aluminium equipment.

Before use: check the current manufacturer label and request the product-specific Safety Data Sheet (SDS) for approved use, handling, first aid and disposal. See the specifications and safety sections below; do not rely on unverified dosing or contact times.

Applications & Trade Use

🧪 Professional Caustic Drain Cleaner – Sodium-hydroxide-based concentrate intended to break down grease and slime in compatible waste-water drains.

🏢 Commercial Drain Maintenance – For trained operators following the manufacturer label, SDS and workplace risk assessment.

📦 Flexible Sizes – Available as a 1L angle-neck bottle, 5L container or 25L trade drum.

💧 Pump-Ready Options – Choose an optional pump-inclusive 5L or 25L variant; each includes one pump and displays its total price.

🏷️ Volume Discounts – Increase quantity for eligible automatic Buy More, Save More savings; no duplicate multipack variants.

Pack Sizes

📦 1L Angle-Neck Bottle – Supplied without a pump.

🧴 5L Container – Choose 5L on its own, or 5L with one 38mm dosing pump.

🛢️ 25L Trade Drum – Choose 25L on its own, or 25L with one DIN61 dosing pump.

💷 Pump Prices – Pump-inclusive variants show the full combined price in the selector, with no separate pump surcharge.

🏷️ Buy More, Save More – Increase quantity to access eligible automatic discounts shown at checkout. No separate 2-, 3- or 4-container bundle variants.

🔍 Compatibility – Confirm pump material resistance to caustic sodium hydroxide and the container fitting before use.

How to Use

📋 Before Use – Read the current Multex label, exact product SDS and workplace COSHH assessment. Confirm that the drain, pipework and equipment are compatible.

🚰 Drain Application – Use only for manufacturer-approved waste-water drain applications. Follow the label for quantity, contact time and rinsing; do not substitute generic online dosing advice.

🧤 Safe Handling – Wear suitable chemical-resistant gloves, protective clothing and eye/face protection as specified by the SDS. Avoid splashes and mist.

🚫 Do Not Mix – Never combine with acids, bleach or any other cleaners. Avoid plunging or disturbing drains containing caustic chemical.

💧 Dispensing – The 5L pump variant includes one 38mm pump; the 25L pump variant includes one DIN61 pump. Verify material resistance and fitting compatibility before use.

Safety & Storage

🚨 DANGER — Caustic Chemical – Contains 30–50% sodium hydroxide according to product safety information. Harmful if swallowed; causes severe skin burns and eye damage.

🧤 Required Protection – Wear chemical-resistant gloves, protective clothing and eye/face protection as stated in the SDS. Prevent splashing and mist exposure.

🚫 Chemical Incompatibilities – Do not mix with acids, bleach or other cleaners; avoid aluminium containers and check equipment compatibility.

🚿 First Aid – If skin or eyes are exposed, rinse immediately with water as directed by the current SDS and seek urgent medical help. Remove contaminated clothing.

⚠️ If Swallowed – Rinse mouth; do not induce vomiting. Get immediate medical assistance following the SDS.

📦 Storage & Disposal – Keep securely closed in its original container, protected from incompatible materials. Follow SDS instructions for storage and disposal.

Delivery & Returns

Shipping options, charges and any product-specific restrictions are shown at checkout.

Read the delivery policy · Read the returns and refunds policy

Technical Specifications & SDS

🧪 Product – Multex Drainastic, professional sodium-hydroxide drain-cleaning concentrate.

⚗️ Composition – Sodium hydroxide 30–50%, according to the product safety information.

🔬 Chemical Identifier – Sodium hydroxide CAS 1310-73-2; EC 215-185-5.

📄 Existing Product Codes – 045RM / 054A, as identified in the current Shopify technical records.

🚰 Intended Use – Treatment of grease and slime in suitable waste-water drains, subject to the manufacturer label and materials compatibility.

⚠️ SDS Classification – Product safety information records Acute Tox. 4 (H302) and Skin Corr. 1A (H314); consult the exact current SDS for full hazards.

📦 Packs & Accessories – 1L, 5L and 25L; optional one-pump-inclusive variants for 5L and 25L.

📑 Documents – Use the product-specific Multex SDS linked with this listing for full handling, PPE, first-aid and disposal information.

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A
Anonymous

Amazing product that does what it says.

Thank you for your review, John. We take great pride in formulating dependable, commercial-strength cleaning solutions, and we are glad the Drainastic drain unblocker performed exactly as expected. We appreciate your business.