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SigmaCover 435

Regular price£64.10
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  • UK manufactured, trusted brands

PPG SigmaCover 435 – High-Build MIO Epoxy Buildcoat for Steel & Concrete

PPG SigmaCover 435 is a two-component, high-build, micaceous iron oxide (MIO) pigmented epoxy coating designed for long-lasting protection of steel and concrete structures in both atmospheric land and marine environments. Delivering excellent durability, flexibility and water resistance, it performs reliably even in demanding conditions-including cold temperatures down to -10°C and high humidity up to 95% during application and curing.

Formulated for both new construction and maintenance, SigmaCover 435 offers strong adhesion to a wide range of aged coatings and can be easily recoated with most two-component or conventional systems, even after long weathering periods. Its eggshell finish and ease of application via airless spray or brush make it a versatile and dependable choice.

Key Features:

  • Two-component, high-build epoxy with MIO pigmentation

  • Suitable for steel & concrete in land and marine environments

  • Cures at low temperatures: down to -10°C (14°F)

  • Tolerates up to 95% relative humidity during application

  • Excellent adhesion to aged alkyd, chlorinated rubber and epoxy coatings

  • Recoatable with most two-component and conventional systems

  • Tough, flexible and resistant to water and mild chemical splash

  • Eggshell finish with easy airless spray or brush application

  • No induction time – 5-hour pot life

  • Fast curing: Fully cured in 4 days at 20°C

Surface Preparation

Substrate conditions
• Steel; blast cleaned to ISO-Sa2½, blasting profile 40 – 70 µm (1.6 – 2.8 mils)
• Steel with zinc silicate shop primer; pretreated according to ISO Sa1 (SSPC SP7) or hand/power tool cleaned to minimum ISO St2 (SSPC SP2)
• Previous coat must be sound, dry and free from any contamination
Substrate temperature
• Substrate temperature during application and curing down to -10°C (14°F) is acceptable; provided the substrate is free from ice and dry
• Substrate temperature during application and curing should be at least 3°C (5°F) above dew point

Technical Data

Pot life
5 hours at 20°C (68°F)

Spreading rate and film thickness
DFT Theoretical spreading rate
75 µm (3.0 mils) 8.4 m²/l (337 ft²/US gal)
100 µm (4.0 mils) 6.3 m²/l (253 ft²/US gal)
150 µm (6.0 mils) 4.2 m²/l (168 ft²/US gal)

Directions for Use

Mixing ratio by volume: base to hardener 82:18 (4.56:1)
• The temperature of the mixed base and hardener should be above 10°C (50°F), otherwise extra thinner may be required to obtain application viscosity
• Thinner should be added after mixing the components
• Adding too much thinner results in reduced sag resistance

Air spray
Recommended thinner
THINNER 91-92
Volume of thinner
10 - 15%, depending on required thickness and application conditions
Nozzle orifice
2.0 – 3.0 mm (approx. 0.079 – 0.110 in)
Nozzle pressure
0.3 - 0.4 MPa (approx. 3 - 4 bar; 44 - 58 p.s.i.)
Airless spray
Recommended thinner
THINNER 91-92
Volume of thinner
5 - 10%, depending on required thickness and application conditions
Nozzle orifice
Approx. 0.48 – 0.58 mm (0.019 – 0.023 in)
Nozzle pressure
15.0 MPa (approx. 150 bar; 2176 p.s.i.)
Brush/roller
Recommended thinner
THINNER 91-92
Volume of thinner
0 – 5%
Cleaning solvent
• THINNER 90-53

Data Sheets

SigmaCover 435 TDS

SigmaCover 435 Base MSDS

SigmaCover 435 Hardener MSDS

We aim to deliver your products as quickly, safely and efficiently as possible. Below you'll find a full overview of our delivery process, options, pricing and terms. If you have any questions or a time-sensitive order, our team is always happy to help — just give us a call on 01902 712286.


📦 Standard Delivery

  • Free delivery on all orders over £100 + VAT within UK mainland.

  • For orders under £100 + VAT, a standard shipping fee will apply at checkout.

  • Orders are typically delivered within 2–5 working days after receipt of cleared payment.

We use Parcelforce and FedEx as our main carriers, though this may vary based on location or size of your order.


⚠️ Important Notes on Delivery

  • Orders placed after 12 midday (Monday–Friday) are usually dispatched the next working day.

  • If you require urgent dispatch or Saturday delivery, please call us before placing your order.

  • Do not schedule contractors or start work until goods have arrived and been checked — we cannot be held responsible for project delays due to late or damaged deliveries.


🚚 Next Day & Timed Delivery Options

We offer express shipping for orders needing a quicker turnaround:

Service Typical Cost* (Ex. VAT)
Next Day Delivery £10.50
Next Day AM Delivery £15.00
Specialist Items £22–£25+

*Pricing depends on order contents and size. For mixed/tinted paint or specialist coatings, next-day delivery may cost more due to courier restrictions.

Please contact us if your order is time-sensitive — we’ll confirm what options are available based on your products and location.


📍 Delivery Outside UK Mainland

International Delivery

We are pleased to offer worldwide delivery on both parcel and pallet orders.

Parcel Shipments

All international parcel deliveries are handled by FedEx International. Shipping times and costs vary depending on destination, parcel size, and service availability.

Pallet Shipments (Including Dangerous Goods)

For palletised orders — including those containing dangerous goods - we work with independent specialist freight companies experienced in compliant global hazardous materials transport.
Due to the nature of these shipments, pricing and transit times are provided on a case‑by‑case basis.

Requesting an International Delivery Quote

If you would like to place an international order, simply get in touch and we will prepare a personalised shipping quote. Please provide the following details:

  • Your full name
  • Delivery address (including country and any required customs information)
  • Details of the items you would like to order
  • Quantities for each item

Once we have this information, we’ll handle the rest - from calculating the most suitable shipping method to arranging safe and compliant delivery to your destination.


🛠️ Specialist Products & Pallet Deliveries

Some coatings are made to order, particularly from premium brands like Sigma/PPG. These orders:

  • May have longer lead times

  • May carry a £150 + VAT delivery charge

  • Could require pallet delivery — a separate charge may apply

If your order requires palletisation, we’ll contact you after checkout to confirm delivery costs. You're also welcome to contact us first for a delivery quote before placing the order.


📦 Stock & Availability

We hold a large amount of stock ready for immediate dispatch, but:

  • Some products may need to be ordered in from manufacturers

  • Specialist items may be tinted or made to order, causing additional lead time

  • We’ll always aim to part-deliver where possible to avoid unnecessary delays

If you’re on a strict deadline, please get in touch before ordering so we can advise on delivery timeframes.


🚫 Delivery Liability

While we work hard to ensure your order arrives safely and on time, we use third-party carriers and cannot be held liable for:

  • Delays in transit

  • Lost shipments

  • Goods damaged in delivery

If your order is damaged or delayed, please let us know as soon as possible. We are not always informed automatically by the courier, so your input is essential.

We will work with you to resolve any issues — whether that means replacing items or chasing the carrier.

Note: Address changes after dispatch may incur additional charges, so please double-check your delivery details at checkout.


🧾 Payments & Order Processing

Orders are only processed once full cleared payment has been received.

You will receive email updates at each stage of the process:

  • Pending – order received

  • Processing – being picked, packed or manufactured

  • Dispatched – on the way with the carrier

  • Back order / Part dispatched – if stock is split or delayed


Need Help?

If you're unsure about shipping costs, timelines, or need your order by a specific date, we strongly recommend giving us a quick call before placing your order:
📞 01902 712286
📧 info@andrewscoatings.co.uk

We're here to help make sure you get the right product, in the right place, at the right time.

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What is your returns and refund policy?

You may return eligible goods in their original condition within 7 days of delivery. Returns are subject to:

  • Prior approval and a returns reference number

  • A handling charge of 15% to 50%, depending on the product and supplier

  • Goods must be unopened, unused and in saleable condition

  • Original delivery costs are non-refundable

  • Returns are at your own cost - we recommend using a tracked, insured service

To start a return, please email: info@andrewscoatings.co.uk with your order number and reason for return.
Refunds are processed within 3–5 working days once the item is received and inspected.

Please note: Custom-tinted paints, aerosols, or bespoke products are non-returnable unless faulty.


🚚 2. How long does delivery take?

Depending on UK stock, our standard delivery is 1–3 working days for UK mainland addresses. Orders placed before 1pm typically ship same day. If stock is low or delayed, one of our advisors will be in touch. 
For larger or palletised orders, allow up to 5 working days.


🎨 3. Can I return custom-tinted paint?

Custom-mixed and tinted paints are made to order and non-returnable, unless there's a fault or we've made an error.
We strongly recommend confirming your colour choice before ordering.


📦 4. What happens if my order arrives damaged?

If your item is damaged in transit, please contact us within 48 hours with photos of the damage and your order number.
We’ll arrange a replacement or refund as appropriate - no hassle.


🧽 5. Do I need to prime before painting?

It depends on the surface and product. Many of our coatings are direct-to-surface but some materials (like new concrete or bare metal) may need a primer. 

It will also depend on the surface condition and if you're painting over an existing coating or going direct to surface. Check the Technical Data Sheet (TDS) on each product page, or contact our technical team for advice @ info@andrewscoatings.co.uk or call us on 01902 429190. 


💳 6. What payment methods do you accept?

We accept:

  • All major credit/debit cards

  • PayPal

  • Klarna (Buy Now, Pay Later)

  • Google Pay / Apple Pay


🖌️ 7. How do I know which product is right for my project?

We’ve carefully categorised our products so you can easily find the right coating based on surface type, project use, or area of application - like floors, metal, kitchens, or outdoors.

Some products do cross over between categories (for example, a floor paint that also works on metal) but rest assured - we’ve placed them where they’re most commonly used.

Still unsure? Just drop us a message - we’re happy to help you choose the best fit for your specific project.


🌍 8. Do you ship internationally?

Yes we can ship anywhere in the world. For international trade or wholesale orders, please contact: info@andrewscoatings.co.uk

🧾 9. Can I request a VAT invoice?

Yes - VAT invoices are included automatically in your order confirmation email. If you need a re-send, just let us know.


📞 10. How do I contact you?

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