Intumescent paints protect their steel substrate by providing an insulating layer between steel and the fire. Exposure to the heat of a fire triggers a reaction, causing the intumescent paint to expand to up to 50 times its thickness and form a solid foam-like char. This paint insulates the steel from the heat, so prolonging the time before it reaches the temperatures that would compromise it. Intumescent paint for steel is the main coating used for steel fire protection.
Types of MAIQI Fire Retardant Paints
Ultra-Thin Thickness Intumescent Paint MAIQI Ultra thin steel structure fire retardant coating is suitable for the fire protection of various steel structure, engineering bearing components above 120 minutes. The construction of fire protection,is particularly applicable to some hydrocarbon chemicals (such as oil,solvent,etc) fire danger of steel structure engineering,such as petroleum and chemical engineering, garage, oil drilling platform, oil storage facilities supporting frame for fire protection.
Product features ⇒ Excellent fireproof performance. |
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Thin Thickness Intumescent Paint Thin film fireproof paint for steel systems generally have three components, a primer, a base coat, and a sealer coat. These paints are mainly used for 30, 60, and 90 minutes. Thin film materials have a 50/1 expansion ratio; a 1 mm thick coating will expand to about 50mm in a fire. These coatings are both solvent- and water-based, and are available in a range of finishes.
Product features ⇒ Excellent fireproof performance. |
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Thick Thickness Intumescent Paint MAIQI thick films fireproof paint has a higher dry film thickness than thin film coatings, and are usually epoxy based. Originally developed for use with hydrocarbon fires, thick film materials are now also used in harsh or difficult to maintain environments where thin film materials would not work optimally. Examples include external steel in high rise buildings and exposed marine environments. Expansion ratios are typically about 5/1 ratio, and attractive finishes are also possible.
Product features ⇒ Smooth finish appearance, ⇒ Excellent fireproof performance, |
Intumescent paint is a reactive coating which swells as a result of heat exposure, thus increasing in volume and decreasing in density. Specifically, an intumescent paint is a coating that reacts to heat by swelling in a controlled manner to many times its original thickness, producing a carbonaceous char formed by a large number of small bubbles that act as an insulating layer to protect the substrate.
The purpose of intumescent products is the prevention of the structural collapse of the building, which can occur if load- bearing steel elements reach a critical state.
For steel, this is linked to the critical temperature, defined as the temperature at which the load-bearing capacity becomes equal to the effect of the applied loads (so the steel element is very close to collapse). Critical temperature of steel can vary from 350°C to 750°C, depending mainly on the loading scheme, but in most of the cases between 500°C and 620°C.
Product Series |
Quality |
Performance |
State |
Brushing |
Fire resistance hour |
Thickness |
Number of brushes |
Usage |
Ultra-thin film coating |
Oily/waterborne |
expands |
smooth |
Roll/spray |
0.5-2 |
0.52-2.18 |
2-5 |
0.6-2.8 |
Thin film coating |
Waterborne |
expands |
granulated |
spray coating |
1-2.5 |
1.1-5 |
1-3 |
1.5-5 |
Thick film coating |
Waterborne |
Non-expansion |
Granular |
Scratch/spray |
1-3 |
9-25 |
1-3 |
4-15 |
How to correctly apply intumescent paints to steel materials - preparation tips
Intumescent paints are always part of a system. For steelworks, the system includes an anticorrosive primer and (eventually) a topcoat. For the former, the purpose is assuring adhesion to the substrate in the cold state, anticorrosion protection and stickability of intumescent char formed during fire exposure, while for the latter, the purpose is serving an aesthetic function and, in case of specific atmospheric aggression, a sealer function to prevent early degradation and inactivation of the intumescent layer and to promote weathering resistance in end-use conditions.
Before being coated with a compatible primer, steelwork must be prepared according to Standard. If that is already the case, it must be cleaned and free from grease, oil, rust, dirt or any other contaminant that may inhibit the bonding.
Compatible primers, tested with our products are:
⇒ Acrylic
⇒ Short or medium oil alkyd
⇒ Two-component epoxy
⇒ Zinc-rich epoxy
⇒ Zinc silicate
Founded in 2005, Maiqi has an integrated technology based enterprise specializing in paint and coating manufacturing. Through leadership in innovation sustainability and color, MaiQi helps customers in industrial, transportation, commercial and construction markets and aftermarkets to enhance more surfaces in more ways than does any other company. MaiQi have long focused on the development and operation of integrated solutions for industrial coatings and have grown into a professional operating team with more than 100 experience professionals in coating production research and development management.
Specialist Coatings Expertise
The selection of a suitable coating system is critical, and we work closely with our customers to ensure together we have chosen one that will perform successfully in your specific application. The other vital aspect of a successful coating system is its application. Our applicators have over 100 years combined experience in the successful application for various industries. We are experts in coating solutions, manufacturing and supplying Epoxy Coatings, Polyurethane Coatings, General Metal Coatings, Road Marking Paints to a diverse range of businesses and industries. As well as supplying a wide range of industries with stock coatings, our expertise means we can tailor the properties of different coating materials to suit your project requirements.
FEATURED MAIQI COATINGS
Metal corrosion and surface treatment come in many forms. MAIQI protective and floor coatings for the industry are formulated against such protection. Select your paint, or message us for information.
MAIQI anti-corrosive and floor coatings come in several formulations to meet our customers' various needs. All MAIQI coatings provide superior protection, and different formulations allow you to choose the coating that is right for the environment in which you work.
The MAIQI formulation that is right for your project or workplace should be chosen based on the following factors:
«UV exposure «Exposure to corrosive or harsh chemicals «Regulatory environment
«VOC restrictions «Heat exposure
Floor Coatings |
Anti-Rust Coatings |
Fire-Retardant Paints |
Road Marking Paints |
Heat Resisant Paints |
Marine Paints |
Wood Coatings |
Protective Coatings |
FAQ
Q1. Are you a manufacturer?
A: Yes. We are a professional manufacture established in 2012, Maiqi Group continues to improve its system and product quality.
Q2. What is your main production?
A: Our main paint production is included type Floor Paints, Fireproof Paints, Industnial Ant-corrosion Paints.
Q3. What is your payment terms?
A: By T/ T, 30% for deposit and 70% before shipment By , 100% imevocable LC opened within two weeks after contract signed .
Q4. What is your delivery time?
A: 30-45 working days after deposit and production specifications confirmed
Q5. Do you accept small order?
A: Due to paint is chemical goods, it can't do bulk shipping.We use and container for the transportation
Q6. Can you provide the samples?
A: Yes, we provides free sample less than 1kg, you only need to pay for the transportation cost .
Q7. What's your MoQ( min order quantity)?
A: Our MOQ is 500Kg, and we accept mixed order
Q8. Can you do an OEM?
A: Yes, we can do the brand logo and different package size as your requirements.