HEATVIS(히트비스)

SELF-REGULATING TECHNOLOGY | FIRE-SAFE

The heating film that regulates itself
-- so you never have to

PTC Film | Self-Regulating Technology | Fire-Safe

PTC self-regulating electric underfloor heating film -- fire-safe, no external thermostat required.

PTC Film uses the Positive Temperature Coefficient effect to actively manage its own heat output -- no external thermostat required to prevent overheating.

When localised temperature rises, resistance in the carbon layer increases automatically -- reducing current flow, suppressing excess heat, and eliminating the overheating risk that conventional heating films cannot self-correct. The result: up to 30% lower energy consumption compared to standard resistive films at equivalent output.

30% Energy savings
Auto Self-regulating
0 Overheating risk

TECHNOLOGY

Unlike conventional heating films that require external sensors and controls to manage temperature, PTC Film's safety is built into the material itself. The carbon layer's resistance rises in direct proportion to temperature -- making overheating a physical impossibility under normal operating conditions, not a matter of control system reliability.

HEATVIS PTC Film: structurally overheating-proof underfloor heating at the material level. Temperature rise -> resistance increase -> current reduction -> fire-safe operation.

Why PTC technology changes the safety equation

Structural fire prevention
Conventional heating films rely on external controls to prevent overheating. PTC Film eliminates the risk at the material level, delivering fire-safe electric underfloor heating by design -- resistance rises automatically as temperature increases, cutting current before dangerous heat can build.
Up to 30% energy savings
Because the film self-regulates output to match actual thermal demand, it avoids the energy waste of fixed-resistance films running at constant load. Independent testing shows up to 30% reduction in energy consumption versus conventional resistive alternatives.
No external thermostat required
PTC Film manages its own temperature response intrinsically. While external controls can still be added for comfort preferences, the film does not depend on them to stay within safe operating limits -- reducing both installation complexity and points of failure.
Same installation as standard films
Advanced technology without added complexity. PTC Film installs using the same method as HEATVIS Stripe Film -- familiar to any trained installer -- with no specialist equipment or modified subfloor preparation required.

PTC carbon layer -- safety engineered at the material level

The PTC carbon heating element is the core of this film's self-regulating behaviour. Silver electrodes are applied after carbon printing -- a sequencing specifically engineered to prevent spark formation at the electrode junction. The outer PET film provides insulation and mechanical protection, completing a construction that prioritises safety at every layer.

PTC Film layer construction
Layer	Function	Detail
PET Film (outer)	Protective insulation	Outer protective layer
Silver electrode	Post-carbon application -- Spark-free design	Spark prevention design
PTC Carbon layer	[*] Self-regulating heating element	Core PTC technology
Copper busbar	Primary conductor	Main power input
PET Film (base)	Base substrate	Structural foundation

“Silver electrodes are applied after carbon printing -- not before. This sequencing is what prevents spark formation at the junction,
removing one of the most common failure points in conventional heating film construction.”

B2B SAFETY MARKET MESSAGE

(+) Ideal for schools, hospitals, care homes, and hotels -- environments where fire safety compliance is non-negotiable.
(+) Satisfies due diligence requirements for building specifiers and insurers who need documented overheating prevention.
(+) Reduces long-term energy operating costs -- making PTC Film the financially and operationally rational choice for large-scale commercial installations worldwide.

Technical specifications

PTC Film technical specifications
Heating technology	PTC (Positive Temperature Coefficient) far-infrared radiation
Voltage	110V / 220V AC
Power density	Standard range: 80-220 W/m², Custom range: up to 400 W/m²
Max. operating temperature	70°C
Film thickness	0.338 mm
Self-regulation	Automatic -- resistance increases proportionally with temperature
Energy saving	Up to 30% vs. conventional resistive heating films (independent testing)
Compatible flooring	Laminate \| Engineered wood \| Vinyl \| SPC \| Tile \| Carpet

Model Dimensions

All PTC Film models are available for global supply with standard installation compatibility.

PTC Film model dimensions
Model	Width (mm)	Thickness (mm)	Pack Length	Weight	Max. Wattage
HV-PTC-305	500	0.338	100 m	25.5 kg	80-220 W/m²
HV-PTC-308	800	0.338	100 m	39.5 kg	80-220 W/m²
HV-PTC-310	1000	0.338	100 m	48.7 kg	80-220 W/m²

Key Benefits

Service 01 Self-Regulating Control
Adjusts heating output as temperature conditions change.
Service 02 Enhanced Overheating Protection
Helps reduce the risk of local heat concentration.
Service 03 Safety-Focused Performance
Designed for projects where stable temperature control is especially important.
Service 04 Simplified System Design
Supports efficient installation with a simple heating film configuration.
Service 05 Energy-Saving Operation
Helps reduce power use compared with conventional resistive films.
Service 06 Ideal for Sensitive Spaces
Suitable for schools, hospitals, care homes, hotels and premium residential projects.