The flexible core and liner for hand lay-up and spray-up processes
For decades, Lantor Coremat® has been considered the world standard for flexible bulker mats and print blockers used in hand lay-up and spray-up processes. All Coremat® grades consist of a polyester non woven containing microspheres. They offer a cost effective increase in stiffness and weight-savings in materials and an excellent surface finish.
Lantor Coremat® Xi
• The cost effective solution for open mould processes
• Is used as core material and/or print blocker
• Is a polyester nonwoven and compatible with all regular types of resins, including Polyester, Vinylester, Phenolic and Epoxy
• Is suitable for hand lay-up and spray-up processes
Applications Lantor Coremat® Xi
Marine : hulls, decks and structures of boats and yachts
Transportation : parts and panels of cars, trailers and trucks
Mass transit : interior and exterior of trains, light rail and buses
Leisure : kayaks, surfboards, pools and tubs
Industrial : cladding panels, containers and tanks
Notification
Keep Coremat® Xi away from direct sunlight, therefore store Coremat® Xi in the original bag. This will ensure proper functioning of the resin indicator. Please note that the resin indicator is not a guarantee that sufficient resin has been applied, but strictly a control mechanism to identify dry spots. Always check resin content
Dimensional data
| Properties | Xi 1 | Xi 2 | Xi3 | Xi 4 | Xi 5 |
| Thickness mm | 1,4 | 2,0 | 3,0 | 4,0 | 5,0 |
| Roll length m | 130 | 80 | 50 | 40 | 30 |
| Roll width m | 1 | 1 | 1 | 1 | 1 |
| Resin uptake kg/m2 | 0,8 | 1,2 | 1,8 | 2,4 | 3,0 |
| Dry weight g / m2 | 45 | 55 | 80 | 105 | 125 |
| Density impregnated kg/m3 | 630 | 630 | 630 | 630 | 630 |
Typical mechanical properties of Lantor Coremat
Xi* impregnated with unsaturated polyesther resin
| Mechanical properties | Unit | Value | Test method |
| Flexural strength | MPa | 11 | ASTM D790 |
| Flexural modulus | MPa | 1100 | ASTM D790 |
| Tensile strength across layers | MPa | 4 | ASTMC297 |
| Compression strength: 10% strain | MPa | 10 | ISO 844 |
| Shear strength | MPa | 5 | ASTM C273-61 |
| Shear modulus | MPa | 35 | ASTM C273-61 |
| *Lantor Coremat ® Xi 3 |
Marine
Lantor and Marine 
A major market for Lantor composites is the Marine industry. The marine segment has adopted composite materials for over 4 decennia now and has been increasing the use of it ever since. Design flexibility, lightweight and excellent surface finish are important topics in this composite market segment.
With its flexible Coremat® grades Lantor enables the possibility of design flexibility and lightweight laminate manufacture in the marine industry. Increasing the surface quality of boats can be done by their special surface enhancement grades and the Finishmat® products.
Lantor Composite materials are used in a wide range of pleasure boats from small sailing boats to huge motor yachts. This is because Lantor materials are suitable for a wide range of manufacturing processes within the marine industry.
Wind Energy
Lantor and Wind Energy
One of the fastest growing markets for Lantor Composites is the Wind energy market. Except for the tower, all the visible parts of a wind turbine are made of FRP where the blades are the major components. With increasing demand of wind turbines the cycle time of producing wind turbine parts need to go down. To be able to compete with other energy sources total cost of energy of wind also needs to decrease.
Lantor flexible core grades can be of great help with these challenging topics when looking at the composite parts of a wind turbine.
For the nacelle housing and spinners, Coremat® and Soric® grades can help to build up laminate thickness fast and therefore help to reduce cycle times. In both the open mold and closed mold processes used to make these parts, Lantor products help to reduce glass and resin use and can therefore reduce cost significantly.
In wind turbine rotor blades a good flow regulation of resin during the production process is needed for high quality products. A special Soric® grade that is easy handled in the process and has very secure and stable flow properties helps to increase quality of the overall product.
Because of years of expertise in the wind energy market, Lantor can assist in laminate build-up solutions and do calculations for an optimal use of the different composite materials and to optimize the production cycle times of the specific products.
